Highland Cow Straw Covers：You will get a pack of 20 straw topper, 20 different Cow themed designs, with light and beautiful designs, adding playfulness and personalization to your cups. 10mm Straw Cover Cap:Highland cow straw tip caps are suitable for all types of straws with an outer diameter of 9-10mm (0.31-0.39inch), perfect for 30-40oz Stanley tumbler straws Premium Material：The straw protector is made of high-quality silicone, soft and flexible, reusable and easy to clean. Please note that straws are not included in our package. Fun and Practical：These straw covers can effectively seal the straw, block dust and foreign objects from entering, keep the straw hygienic and prevent beverages from spilling Widely Used: The silicone straw toppersis small and lightweight, easy to carry, very suitable for outdoor activities, camping and hiking, and is a great gift for family or friends