A trendy, double-walled, vacuum insulated, steel thermal flask that keeps your beverage hot or cold for up to six hours. Comes in the iconic Tupperware bottle shape with temperature retention properties. Ideally suited for carrying hot or cold beverages. Spill Proof: Silicon Gasket makes it water tight and perfect for on-the-go hot or cold beverages. Ergonomic Design: Ergonomic, easy to grip design. Fits most cup holders. Double insulated: Keeps beverages hot or cold for up to 6 hours. Stable: Anti-skid silicon ring makes it stable on the countertops or table. Material and Capacity: The Steel Bottle has a capacity of 550ml.