DURAC Plus Pocket Thermometer with Protective Closed Plastic Case Easy-to-Read White Back Glass for Accurate, On-the-Go Temperature Measurements in Labs, Kitchens Industrial Settings. Wide Temperature Range - This lab grade thermometer has a wide temperature range of -10 to 110C, making it versatile for various scientific, industrial, and chemistry applications H-B Thermometers are NOT for human use. Total Immersion Thermometer Length of 160mm 6.3in giving precise readings in Liquid Calibrated for total immersion, this thermometer ensures accuracy when submerged to the liquid level in the capillary, making it an ideal tool for various applications. Enhanced Safety with Red Spirit Liquid - This thermometer boasts a red spirit liquid filling for superior safety, outperforming traditional mercury filled alternatives. Experience peace of mind with this advanced thermometer choice and on-the-go needs. Reliable Temperature Measurement - This total immersion laboratory thermometer combines durability and precision, our exclusive triple accreditedregistered ISOIEC 170252005, A2LA accredited against equipment whose calibration is traceable to NIST.

HIGH-END WiFi REMOTE CONTROL By connecting to Wifi, you can control the temperature and time via APP installed on your phone. No need to walk back and forth from elsewhere to the kitchen. In addition, the APP provides 18 different flavor recipes as well as detailed instructions on the required ingredients, seasoning methods, and appropriate cooking temperatures and times. It is easy to operate and even kitchen novice can make delicious dishes. It is the best party supplies for family dinners.. LEAD A HEALTHIER LIFE Compared with traditional cooking methods, using sous vide cooking results in a water loss of only 5-8 of the ingredients, minimizing the loss of flavor and nutritional juices, making the food particularly fresh and tender. And it offers the perfect level of doneness ingredients. This is undoubtedly the best choice for vegetarians and fitness enthusiasts who pursue fresh, juicy taste and low fat and low oil healthy foods.. ENHANCE EFFICIENCY AND QUALITY With 1000W of power and a wide temperature range of 77-194F 25-90C, the precise cooker with 3D water circulation heating technology allows ingredients to be heated uniformly in a circulating water bath so that you can save much time in defrosting meat when you prepare the barbecue party. Quickly Cook seafood, turkey and vegetables and at the same time maintain chef-level texture. It is the best party supplies for new year celebration.. TIMER AND TOUCHSCREEN MAKES COOKING CONVENIENT The timer 0-99 hours beeps to remind you when cooking is complete, so you can go in for other affairs without having to worry about overcooking food. LED display screen and sensitive touch control make kitchen cooking more simple and technologically advanced, and have a longer lifespan compared to LCD displays.The portable and lightweight design makes it an ideal choice for minimalist cooks.. USER-FRIENDLY DESIGN Just seal the pickled food in a vacuum bag, set the appropriate temperature for a certain time, and then start cooking. After patiently waiting for a while, you can enjoy a delicious restaurant dish. Adjustable clamps make it suitable for large capacity containers from 4-16L, enable you to cook larger pieces of ingredients. The removable stainless steel sleeve makes cleaning a breeze and its noise level very low, allowing you to enjoy a quiet cooking process..

Please Notecontainerpot is not included. All in One KitDo you want to recreate a professional chef's delectable taste at home Why not try Rocyis sous vide machine kit-Included Sous Vide Machine with upgraded adjustable bracket Sous Vide Lid, which prevents water loss during extended cooking sessions by trapping almost all moisture Detailed cookbook come with 10 healthy recipes, It is perfect for families when there are people with varied tastes.. Elegant LookA sleek and modern design with the latest touch-visibility digital display and constructed with BPA-free stainless steel that looks good in any kitchen. Easy to operate and easy to see. A smashing addition to any contemporary kitchen decor. A stunning gift for any massive foodie in your life.. Enjoy Meal without Effort1000 watts of power enables hyper-fast water heating, 360 strong water cycle to maintain a constant temperature throughout the container, ensuring heat penetration for the whole food from every angle and nutrition can be preserved. Maximize foods natural moisture, yumminess, tenderness, flavors. Premium FeaturesRocyis sous vide cooker with a countdown timer 0-9959 hours and 0.1C precise temperature sensor from 77F - 198.5F or 25C - 92.5C, stainless steel pump and accurate thermostat control.. Easy To UseFix it on both round and square containers.quickly for fast, convenient cooking Ultra-quiet with less than 40 dB noise at 1 m. An alarm signal will buzz when cooking is done.. Safety WarrantyRocyis provide a 1-year warranty. If you have any questions about your purchase or any other product for sale, please feel free to Ask a question to us.Our professional customer service team will solve your problems within 24 hours..

Sous Vide cooking maintains the nutrients and moisture of the ingredients, and the taste of the ingredients is more flavorful than normal cooking at a constant temperature for a long time. Based on thousands of food tests, this sous vide cooker could accurately control cooking time and temperature. Voltage 100-120V 60Hz Power 1000W Temperature Range 25-92.5 Degree Celsius 77.0-198.5 Degree F . Water temperature kept constant with 360 degrees water circulation. Fiber of food will not be destroyed. If the sous vide does not meet your satisfaction for any reason, contact us for refund at any time.

DURAC Plus Pocket Thermometer with Protective Closed Plastic Case Easy-to-Read White Back Glass for Accurate, On-the-Go Temperature Measurements in Labs, Kitchens Industrial Settings. Wide Temperature Range - This lab grade thermometer has a wide temperature range of 0 to 220F, making it versatile for various scientific, industrial, and chemistry applications H-B Thermometers are NOT for human use. Total Immersion Thermometer Length of 160mm 6.3in giving precise readings in Liquid Calibrated for total immersion, this thermometer ensures accuracy when submerged to the liquid level in the capillary, making it an ideal tool for various applications. Enhanced Safety with Red Spirit Liquid - This thermometer boasts a red spirit liquid filling for superior safety, outperforming traditional mercury filled alternatives. Experience peace of mind with this advanced thermometer choice and on-the-go needs. Reliable Temperature Measurement - This total immersion laboratory thermometer combines durability and precision, our exclusive triple accreditedregistered ISOIEC 170252005, A2LA accredited against equipment whose calibration is traceable to NIST.

Contains red organic liquid with white back glass and is attached to an aluminum v-shaped backing. Length 155mm 6.1. Range -10110C Divisions 1C Accuracy 1C. Hand inspected in our ISOIEC 90012008, ISOIEC 140012004, ISOIEC 170252005 facility and A2LA Accredited Calibration Lab Recognized and accepted by the signatory economies of the ILACMRA. Former HB 9780. Note H-B Instrument Thermometers are NOT for human use.

Wide Temperature Range - This lab grade thermometer has a wide temperature range of -20 to 150 degrees Celsius, making it versatile for various scientific, industrial, and chemistry applications. Total Immersion Thermometer Precise Readings in Liquid - Calibrated for total immersion, this thermometer ensures accuracy when submerged to the liquid level in the capillary, making it an ideal tool for various applications. Enhanced Safety with Blue Spirit Liquid - This thermometer boasts a blue spirit liquid filling for superior safety, outperforming traditional mercury filled alternatives. Experience peace of mind with this advanced thermometer choice. Reliable Temperature Measurement - This total immersion laboratory thermometer combines durability and precision, meeting ANSISAMA Z236.1-1983 standards for accurate readings, making it your dependable tool for a wide range of temperature measurements. Recyclable Packaging with Safety in Mind - Each thermometer is thoughtfully enclosed in our easily recyclable Safety-Pak packaging, featuring a secure non-roll design for hassle free storage.

DURAC Plus pocket thermometer features a closed plastic case and white back glass. Range -10 to 110C 0 to 220F divisions 1C 2F accuracy 1C 2F. Length 160mm 6.3in total immersion thermometer. Accurate and safe thermometer is ideal for eld studies, waste water treatment and any on-the-go applications. Tested and calibrated in our exclusive triple accreditedregistered ISOIEC 170252005, A2LA accredited laboratory against equipment whose calibration is traceable to NIST. Note H-B Instrument Thermometers are NOT for human use.

PATENT PENDING, INNOVATIVE ACTIVITY PADS Get into a calming flow state. This Lifelines FlowArt 2-Pack includes two full-sized activity pads in Hidden Patterns and Pogo-Dot, each with 20 meditative scenes, plus a bonus activity pad with eight more captivating scenes 2 sets of unique markers also included.. Hidden Patterns, Foodie Fun Color in each section to reveal hidden patterns and textures inside each food item. Marker inks are mixable so you can layer one color over another to create a new color. Watch playful scenes unfold before your eyes. Pogo-Dot, Groovy Vibes Use the delightfully bouncy pogo pen to create a dotted, textural scene. With each press, this innovative pen adds multiple dots and gives a satisfying bounce-back. First, layer dots to fill the gray sections of the page then, use the white marker with color-changing ink to transform dots into new colors for a striking 3D effect. Bonus FlowArt Activity Pad Pack includes a bonus activity pad with 8 additional scenes for even more calm whenever you need it. Find your flow during work and study breaks, unwinding before bed, or well-being on-the-go.. Detachable Marker Storage Tray The snap-in storage tray keeps your makers securely attached to the book, so youll never lose them, and everything stays together for easy, on-the-go fun. One-of-a-Kind Gift for Any Occasion A great alternative to gem or diamond art and the perfect gift for the person who has everything. Anyone from tweens to adults and seniors can use these Guided Art Meditations to find a sense of calm throughout the day.. The Science Behind FlowArt These guided art meditations are designed to help you achieve a calming flow state. Each scene is thoughtfully crafted to encourage repetitive, relaxing movements, promoting mindfulness and reducing stress.. About Lifelines From the creative mind of Melissa Bernstein, the co-founder of Melissa Doug Toys and now co-founder of Lifelines, Lifelines offers innovative tools that are designed to help you calm your mind and boost your moodanytime, anywhere..

Get Into a Calming Flow State Experience full immersion into this mesmerizing activity by hovering the marker's UV light over the invisible ink on each page to reveal hidden, glowing, traceable scenes. Each activity pad includes 20 meditative scenes and 5 interchangeable colors in a detachable storage tray. 2-pack.. Easy to Use Select a color and click cartridge into marker. Remove cap and place on back of marker to activate UV light. As the light illuminates the invisible ink and reveals glowing, captivating details on the page, use the marker to trace and fill in each section, bringing the beautiful scene to life.. Switch, Blend, Customize To switch colors, remove cartridge by replacing the cap and pushing the button on the side of the pen. Then, insert new color of choice. Marker inks are mixable, so you can also layer them to create entirely new colors. Find Your Flow Wherever You Go Busy your hands and calm your mind with portable activity pads, each with 20 meditative scenes designed to help you achieve a calming flow state. Great for work and study breaks, unwinding before bed, or well-being on-the-go.. One-of-a-Kind Gift for Any Occasion A great alternative to gem or diamond art and the perfect gift for the person who has everything. Anyone from tweens to adults and seniors can use these Guided Art Meditations to find a sense of calm throughout the day.. The Science Behind FlowArt These guided art meditations are designed to help you achieve a calming flow state. Each scene is thoughtfully crafted to encourage repetitive, relaxing movements, promoting mindfulness and reducing stress.. About Lifelines From the creative mind of Melissa Bernstein, the co-founder of Melissa Doug Toys and now co-founder of Lifelines, Lifelines offers innovative tools that are designed to help you calm your mind and boost your moodanytime, anywhere..

PATENT PENDING, INNOVATIVE ACTIVITY PADS Get into a calming flow state. Experience full immersion into this mesmerizing activity by hovering the marker's light over the invisible ink on each page to reveal hidden, traceable scenes. This Lifelines FlowArt 2-Pack includes 2 full-sized activity pads plus a bonus activity pad with 8 more captivating scenes. Create Beautiful Wildlife Floral Scenes Each full-sized activity pad includes 20 meditative scenes and 5 interchangeable colors in a detachable storage tray. The snap-in storage tray keeps your makers securely attached to the book, so youll never lose them, and everything stays together for easy, on-the-go fun. Easy to Use Select a color and click cartridge into marker. Remove cap and place on back of marker to activate light. As the light illuminates the invisible ink and reveals glowing, captivating details on the page, use the marker to trace and fill in each section, bringing the beautiful scene to life.. Switch, Blend, Customize To switch colors, remove cartridge by replacing the cap and pushing the button on the side of the pen. Then, insert new color of choice. Marker inks are mixable, so you can also layer them to create entirely new colors. Bonus FlowArt Activity Pad Pack includes a bonus activity pad with 8 additional scenes for even more calm whenever you need it. Find your flow during work and study breaks, unwinding before bed, or well-being on-the-go.. One-of-a-Kind Gift for Any Occasion A great alternative to gem or diamond art and the perfect gift for the person who has everything. Anyone from tweens to adults and seniors can use these Guided Art Meditations to find a sense of calm throughout the day.. The Science Behind FlowArt These guided art meditations are designed to help you achieve a calming flow state. Each scene is thoughtfully crafted to encourage repetitive, relaxing movements, promoting mindfulness and reducing stress.. About Lifelines From the creative mind of Melissa Bernstein, the co-founder of Melissa Doug Toys and now co-founder of Lifelines, Lifelines offers innovative tools that are designed to help you calm your mind and boost your moodanytime, anywhere..

Materiel Nail Art Brush Cleaner Cups are made of plastic. Durable, reusable and long lasting. Comes with screw-on lid for closure, protection, and prevent evaporation of brush cleaning solution when not in use.. Height 11cm4.33 inch Up diameter 6.5cm 2.56inch Bottom Diameter 5.5cm2.16inch. Lightweight and easy to carry and storage.. Cylindrical shaped cup with opening at top With 8 different size slots for hold 8 different size of brushes at the same time. Wide opening at center for easy reach and dip usage.. Application Nail Art Brush Pen Holder are used for soaking nail art brushes, shading gel brushes, nail art line pens, acrylic brushes, shading gel brushes. Keeps your brushes clean and ready to use at any time.. Package included 2 pcs Nail Art Brush Cleaner Cup Container. Note Only included Nail Art Brush Cleaner Cup, not the brush and pen..

No More Lumpy Chunks Mix, blend, whisk, and froth quickly with our slim yet powerful immersion blender. Includes detachable accessories to make smoothies, whipped cream, even beaten eggs.. 3 Easy Attachments Stick blender with 1 Stainless Steel Blending Shaft to blend shakes, soup, baby food 2 Frother for foaming all milk types 3 Whisk for whipping cream or batter.. Turbo Power Increase power with Turbo Mode on this handheld blender with its ergonomic grip and non-slip handle. The blade housing reduces splashes.. Simple Steps Add an attachment, plug it in, submerge the blade, then blend, and adjust the speed. See included instructions for details.. Easy Maintenance Cleaning up is simple Blending Shaft, Whisk, and Frother are dishwasher safe. Made in China..

Powerful 150W motor blends, purees, mixes and chops as well as blend healthy drinks, shakes, sauces, soups, and more. Blend, chop, mix right in your pots, bowls, juice pitchers - few dishes means fast cleanup. Easy clean-up with dishwasher-safe and BPA Free detachable rod, stainless steel blades are durable and stain resistant. Comfortable ergonomic handle takes up less storage space. OnOff button with fingertip control for simple one-touch operation.

Used Book in Good Condition.

COOK LIKE A CHEF, AT HOME Create perfectly cooked meals with our superior precision-controlled Sous Vide immersion circulator that delivers incredibly tasty, juicy results without overcooking. ALL-IN-ONE STARTER SET INCLUDES Stainless steel 1000 Watt SOUSVIDE ART Cooker with universal clamp to attach to any cookware. Additional accessories are 15 BPA-free reusable bags, vacuum seal pump, clips, clamps, and recipe book to inspire first-time Sous Vide beginners and culinary enthusiasts. WHAT YOU CAN COOK With your SOUSVIDE ART Cooker, you have limitless cooking options - from chicken, fish, vegetables, egg, meat, beef, lamb, pork, and much more Our superior technology lets you lock in flavor, retain more nutrients, and create tender, restaurant-style dishes right from your kitchen. HEALTHIER, TASTIER COOKING Our premium Sous Vide technology preserves more nutrients and vitamins in your foods than other methods of cooking with no additional oils or fats required for flavoring. Plus, Sous Vide cooking is the meal prepper's ultimate dream for batch cooking delicious, nutritious food. MESS-FREE EASY TO CLEAN Achieve chef-like results with half the effort and minimal monitoring with our precision-control technology that alerts you when your perfectly-cooked food is ready. Easily clean the pod and store your SOUSVIDE ART circulator in a drawer to keep your kitchen counter uncluttered.

Temperature range -20 to 110C. Liquid fill red spirit glass type white back. Total immersion length 305mm accuracy 2C. Country of origin China.

Traceable to NIST, individually serialized. Ideal for use in chemical laboratories, universities, scientific institutions, food and beverage processing, petrochemical laboratories, pharmaceuticalmedical industry, dairies, breweries and distilleries.. Include multi-language English, French, German, Italian, Portuguese, and Spanish Statement of Accuracy and Traceability. Tested and inspected by our USA quality team.

Pros have been doing it for years, and now you can too. Sous vide pronounced sue-veed is a cooking technique that utilizes highly precise temperature control in a circulating bath of water to deliver consistent, edge-to-edge perfect results, with virtually no risk of overcooking your food.. Our best-seller, only better. The first Anova Precision Cooker launched in 2014 and started a home-cooking revolution bringing sous vide to the masses and making Anova a household name in the process. This third generation of our flagship sous vide circulator adds key improvements, making perfect results easier to achieve than ever before. Whats different 1 We upgraded to use dual band WiFi for improved connectivity. 2 A two-line touch screen display allows you to quickly view time and temperature.. Cook, browse recipes, and monitor your meals remotely via your mobile device. Whether youre seeking inspiration for your next ambitious weekend meal, or just want to make an easy weeknight dinner do it from anywhere via the connected Anova App.. The adjustable clamp makes it an ideal fit on nearly any pot that is deep enough to meet the minimum water depth requirements. A removable stainless steel skirt on the cookers lower half makes it easy as a twist of the wrist to detach and clean the skirt either by hand or in the dishwasher.. With 1100 Watts of power and a flow rate of 8 Litersmin, the Anova Precision Cooker 3.0 has the power to get to your desired temperature quick, and is a perfect tool for big batch cooks..

For Clarity of Mind Creativity. Comes in a 1.25 OZ reusable glass vial. Hand Blended and made to order.. Includes Essential Oils, Woods, Resins and Herbs.

For Love, Romance, Attraction Passion. Comes in a 1.25 OZ reusable glass vial. Hand Blended and made to order.. Includes Essential Oils, Woods and Herbs.

EASY TO CLEAN SAFE. Detachable attachments are easier to clean, chemical free with ETL, dishwasher safe and BPA free.. MILK FROTHER ATTACHMENT Portable hand-held milk frother makes milk foam for your coffee.. MORE POWERFUL. 300 Watt powerful hand blender with 8 - speed turbo for milk shakes, soups or baby food. Low noise and shake.. HIGH-EFFICIENCY BLENDER. Thick stainless steel mixing wand with 4 - blade system. Make food mixing more efficient, evenly and smoothly.. 3-in-1 ATTACHMENT WARRANTY mixing wand, milk frother, Egg Whisk with 2-year warranty..

Vibrant Color Payoff - This Jacquard dye creates intense and beautiful colors including a wide array of fluorescent colors. Experiment with different shades by using less dye and more water to create pastels, and more dye and less water for deeper, bolder colors. Best on Protein Fibers - Use as a nylon dye, wool or alpaca yarn dye, or to dye silk, feathers and animal fur. This dye can also be used on anything Nylon, so it can be used to color nylon wigs, tights, leggings and swimsuits, perfect for cosplay. Self-Leveling - Creates level, uniform colors when submerged in the dye bath. Try immersion dyeing, tub dyeing, direct application, garment dyeing, yarn dyeing, and itajime or shibori. Create a concentrated solution for silk painting or add thickener for screen printing. Steam setting is needed for these methods. Permanently Bonds to Fabric - Once the acid is added to the dye solution, the dye magnetizes to the material and bonds with the fibers. This also means the dye is pulled out of the water, leaving you with clean water to dispose of after the dyeing process, making clean up a breeze. Easy to Use - Heat the water to 180 degrees F 80 degrees C then add the dye. Add wet fabric to the dye mixture, then add chosen acid vinegar or citric acid. Acid Dyes are stable in solution, allowing you to save the dye bath or stock solution for future use.

PATENT PENDING, INNOVATIVE ACTIVITY PADS Get into a calming flow state by dotting the letters on the page in a repetitive motion to form beautiful images. This Lifelines FlowArt 2-Pack includes 2 full-sized activity pads, plus a bonus activity pad with 8 more captivating scenes. Create Beautiful Botanical Landscape Images Each full-sized activity pad includes 20 meditative scenes and a set of 4 double-sided markers in a detachable storage tray. The snap-in storage tray keeps your makers securely attached to the book, so youll never lose them, and everything stays together for easy, on-the-go fun. Easy to Use Choose colors for each letter and fill in your color key. Then, use the dot markers to cover the letters in the scene. Press marker firmly to cover large letters and tap lightly for small letters. Get into the flow by completing one letter at a time.. Bonus FlowArt Activity Pad Pack includes a bonus activity pad with 8 additional scenes for even more calm whenever you need it. Find your flow during work and study breaks, unwinding before bed, or well-being on-the-go.. One-of-a-Kind Gift for Any Occasion A great alternative to gem or diamond art and the perfect gift for the person who has everything. Anyone from tweens to adults and seniors can use these Guided Art Meditations to find a sense of calm throughout the day.. The Science Behind FlowArt These guided art meditations are designed to help you achieve a calming flow state. Each scene is thoughtfully crafted to encourage repetitive, relaxing movements, promoting mindfulness and reducing stress.. About Lifelines From the creative mind of Melissa Bernstein, the co-founder of Melissa Doug Toys and now co-founder of Lifelines, Lifelines offers innovative tools that are designed to help you calm your mind and boost your moodanytime, anywhere..

Reusable and Reliable These sous vide bags reusable offer durability and flexibility designed to be cleaned easily after each use, minimizing waste and ensuring long-lasting food storage. Complete Kit for Sous Vide Cooking Includes 30 reusable sous vide bags in 3 convenient sizes 10 large, 10 medium, 10 small plus a manual vacuum pump, four sous vide clips, and two sealing clamps. Advanced Vacuum Seal Technology Designed with leakproof, airtight seals, these sous vide vacuum sealer bags help preserve flavor and freshness, ideal for meats, vegetables, fruits, and more. Versatile and Food-Safe Storage Suitable for daily meal prep, freezing, marinating, and vacuum sealer reusable bags applications safely store your meals and snacks with peace of mind. Suitable for Sous Vide Cooking Use these sous vide cooking bags to cook foods evenly at controlled temperatures designed to retain moisture, taste, and texture for top-quality results.

COOK LIKE A CHEF, AT HOME Create perfectly cooked meals with our superior controlled Sous Vide cooker immersion circulator that delivers incredibly tasty, juicy results without overcooking. ALL-IN-ONE SUVEE COOKER STARTER SET INCLUDES Stainless steel 800 Watt SOUSVIDE ART Cooker with universal clamp to attach to any cookware. Additional accessories are 30 BPA-free reusable bags, a vacuum seal pump, clips, clamps, and a recipe book to inspire first-time Sous Vide beginners and culinary enthusiasts. WHAT YOU CAN COOK With your SOUSVIDE ART Cooker, you have limitless cooking options - from chicken, fish, vegetables, egg, meat, beef, lamb, pork, and much more Our superior technology lets you lock in flavor, retain more nutrients, and create tender, restaurant-style dishes right from your kitchen. HEALTHIER, TASTIER COOKING Our premium Sous Vide machines preserve more nutrients and vitamins in your foods than other methods of cooking with no additional oils or fats required for flavoring. Plus, Sous Vide cooking is the meal prepper's ultimate dream for batch cooking delicious, nutritious food. MESS-FREE EASY TO CLEAN Achieve chef-like results with half the effort and minimal monitoring with our control technology that alerts you when your perfectly-cooked food is ready. Easily clean the pod and store your SOUSVIDE ART circulator in a drawer to keep your kitchen counter uncluttered.

Material sturdy plastic reusable, can be used for long time. Cup size height 11cm4.33inch, upper mouth diameter 6.5cm2.55inch, cup bottom diameter 5.5cm2.16inch. Can holds 8 different size brushes. How to use pour the washing pen water into the wash cup, insert the pen into the card slot, and immerse the pen tip in the wash water. Application the cleanser cup for soaking nail art line pens, acrylic brushes and shading gel brushes etc, keep your brushes cleaned and ready to use, suitable for professional use or home use.

PC Compatible, Pentium II 200 MHz or higher Windows 98 or higher, including XP. 90 MB HD, 16 MB RAM 800 x 600, High color display 4X CD-ROM Drive or faster Speaker, Mouse. Microphone, Printer and Internet Access are all optional. Topics. PC.