Estone Cute Anti-dust Silicone Glass Cup Cover Coffee Mug Suction Seal Lid Cap Cartoon (Panda) Material: food-grade silicone, safe and non-toxic Anti-dust and anti-slip High working temperature of -40 degree Celsius to 230 degree Celsius Always keep your drinking cups and coffee mugs hygienic and clean The magic lid new style lovely fruit and desserts designs include strawberry, elephant , watermelon , lemon , santaloupe , spongeBob , maruko ,bowknot with a strong waterproof leak tight barrier drops To enable airtight sealing, press the cup cover