351ml Capacity: The portable cup has a 351ml capacity, featuring a tumbler design with an ideal size for holding a generous amount of liquid. Two Ways to Drink: Includes an open-top cover type and a direct drinking type without needing to remove the cover. Material: The travel coffee tumbler is constructed with a stainless steel seamless liner, ensuring durability and leak-proof performance at any angle. Keeps Hot and Cold for 6 Hours: The insulated tumbler is suitable for hot or cold beverages such as coffee, tea, water, milk, soup, cola, and latte. Application: Ideal for use at the gym, pool, or on the go. Its modern design also makes it perfect for home or office use. Specification: Material: Stainless Steel, Ceramic Capacity: 351ml Size: 7.65cm x 7.65cm x 14cm / 3.01 inch x 3.01 inch x 5.51 inch Package Includes: 1 x Coffee Tumbler Cup Note: When pouring boiling water into the cup, high steam pressure may build up. Do not press the button to open the lid immediately to avoid accidental splashing. To open the cover safely, first rotate and unscrew it slightly to release pressure. When not in use, secure the lid in the locked position to prevent accidental opening and potential burns.