1.Equipped With A Silicone Sealing Cover, Anti-Spill Design, Safe To Use, When The Cup Lid And Movable Buckle Are Closed, They Can Be Splash Proof; 2.When Drinking, Turn The Movable Button To The Temporary Position To Expose The Drinking Mouth; 3. The Double-Layer Cup Design Prevents The Temperature From Reaching The Palm Of Your Hand; 4. In Summer, Cold Drinks Are Not Cold, Hot Drinks Are Not Hot In Winter, Cold Drinks And Hot Drinks, Just One Cup; 5. High Borosilicate Glass Material, High Temperature Resistance, Can Be Used For Coffee, Milk, Juice, Tea, Etc; 6. Glass Handy Cup, Classic Egg-Shaped Cup, Light Weight, Good Grip, Can Be Used Outside; 7. Wide Application Range, The Cup Can Be Used In Microwave Oven, Oven, Dishwasher, Disinfection Cabinet Specifications: Material: Glass Capacity: 350 MI Package Included: 1Pc Double Wall Glass Cup