【Compatible】: The cute cat straw toppers is specifically designed for stanley cup. You don't have to worry about the wrong size, perfectly compatible with stanley cup 20&30 oz tumbler with handle straws. 【SAFE MATERIAL】 These cat straw toppers are made of silicone, durable, reusable, and can be cleaned by hand or by dishwasher. Airtight seal, anti-dust, and splashproof, especially for outdoor activity. 【Cute Design and Practical】: These straw toppers are not only styling, but practical too. They effectively block dust and other foreign objects from entering your drink, without harming your body. And they look cute too! 【Easy to Carry】: This portable straw lid kit is small and easy to carry, making it perfect for outdoor activities like walking, camping, and hiking. 【Perfect Gift 】These cute Stanley straw covers are the perfect gift for birthdays, Mother's Day, Valentine's Day, or Christmas. Silicone Stanley Straw Cover, Reusable Straw Toppers Drinking Straw Covers,Cute Cat Straw Covers Cap For tumblers, 8mm Straw Cover Cap for Stanley Cup.