351ml Capacity: The portable cup has 351ml capacity, the tumbler designs body but great size suitable for great amount of liquid. There Are Two Ways to Drink Coffee: Open top cover type and direct drinking type without opening the cover.Material: The travel coffee tumbler is made of stainless steel seamless liner, is durable, no leakage at any angle.Keeps Hot and Cold suitable for 6 Hours: The insulated coffee tumbler is suitable suitable for hot or cold drinks, milk, soup, cola, tea, water, coffee, and latte, etc.Application: Just bring the portable tumbler to the gym, swimming pool or anywhere you go. Except outdoor activities, modern design make the insulated mug awesome to use at home or in the office. Specification: Material: Stainless Steel CeramicCapacity: 351ml Size Chart: 7.65cmx7.65cmx14cm/3.01inchx3.01inchx5.51inch Package Includes: 1Coffee Tumbler Cup Note: When too high temperature boiling water is put into the cup, high steam pressure will be generated. Please do not flip open the button switch at this time to avoid splashing.If you want to open the cover, please first rotate and unscrew the cover to release the pressure.When not in use, please fasten the lock to avoid burns caused by popup cover.