Each reusable thermal bottle is made from a durable stainless steel body, with a polypropylene lid and silicone seal making it hardwearing and leakproof. The top has a touch screen digital thermometer so you can quickly see the temperature of the contents, and the integrated battery will last for approximately 18000 uses! The double-walled design can be used with hot and cold drinks, keeping liquids cold for up to 24 hours and warm for up to 6 hours. Each bottle holds 450ml, has a handle strap and removable tea strainer for loose leaf tea. It's perfect for keeping you hydrated throughout the day whether it's a cooling fruity number or your essential morning coffee. This product is hand wash only, it is not dishwasher safe. Features: Made from durable stainless steel Volume holds 450ml Touch screen digital thermometer top Keeps drinks warm for up to 6 hours Keeps drinks cool for up to 24 hours BPA free Double walled leakproof design Specifications: Dimensions: H:22.5 x W:6.5 x D:6.5 cm