About this project Keep Warm and ColdThe coffee cup adopts 6-layer vacuum insulation technology. Our metal water bottles have been proven to provide the best insulation for your beverage, whether it's cold cola or hot coffee. More than 12 hours for hot drinks and more than 12 hours for cold drinks. 304 Stainless SteelInsulated glass is made of kitchen-grade 18/8 stainless steel, instead of ordinary brittle glass, BPA-free, lead-free, easy to clean, and more durable than other ordinary glass. The interior is electro-polished for an elegant exterior. Specially designed for car cup holders. LEAK PROOFOur water bottle uses food grade silicone to ensure airtightness and leak proof. The cylinder is designed to reduce spillage and shaking, so pack your water bottle in a school bag, backpack or travel luggage without worrying about spills or leaks. Capacity: 450ml Clean and UseEasy to use and easy to clean. Safe, healthy alternative to plastic bottles and cups. An eco-friendly alternative to bottles and cups. Reusable, unbreakable and easy to clean. The inside of the lid is embedded with a PP leak-proof silicone ring. The structure is simple, and the water nozzle can be removed for cleaning. Easy to CarryVacuum Insulated Water Bottle 17oz Fits Most Standard Cup Holders. Take this easy-to-carry portable water bottle with you when hiking, biking, shopping, or leaving it at the office. Thermos are a great gift for any occasion.