characteristic: The double vacuum wall is made of 201 stainless steel, which is completely odorless, rust proof and leak proof. The lid is made of food grade silica gel and does not contain bisphenol A, ensuring high durability. Coffee cup cover is equipped with silicone sealing ring to prevent beverage leakage and overflow. The thick rubber design at the bottom prevents the cup from sliding or overturning. 510ml, small and beautiful, easy to carry, suitable for travel. It also applies to most car cup holders and coffee machines. Easy to carry, you can easily enjoy coffee wherever you go. It is suitable for indoor and outdoor use in family, party, travel, school, horse riding, office hours, etc. Heat preservation cup for 6 hours, heat preservation at a certain temperature for 6 hours, and the taste is better. Description: Material: 304 stainless steel, 201 stainless steel (lining), food grade PP cover Capacity: 510ml Cup size: 90 * 168 * 68mm (510ml) Functions: warm and cold proof Packaging includes: 1 cup of coffee Note: Due to the differences between different monitors, the image may not reflect the true color of the article. Compare the detail size with your size. Because of manual measurement, the allowable error is 1-3cm.