0.4 Inch Straw Covers - Compatible with Stanley 30/40 OZ tumbler straw and most straws in diameter 0.4 inch (10mm). The perfect choice for stanley lovers, friends and family. Please note that the straws are not included in your order. Food Grade Material - Made of silicone, these silicone straw covers are durable, reusable, and can be cleaned by hand or in the dishwasher. Not only can it be decorated but also can increase children's habit of drinking more water. 6-Pack Bear Paw Design - The 6 Pack reusable silicone straw covers caps set includes 6 Bear Paw Style straw toppers in 3 colors, enough choices that can meet you daily needs. CHOOSE A PATTERN U LIKE! Protect Your Straws - The straw cover can seal your straw, so that it can prevent dust when not drinking, or prevent drinks from spilling during moving, a good helper for outdoor activities. Sale Service - If you have any question, please contact us, whatever before purchase or after purchase. We will try our best to solve your problem. 6-Pack Straw Covers Cap for Stanley Cup, Stanley Straw Caps Compatible with 40 oz Stanley Tumbler, Reusable Silicone Dust-Proof Straw Tips for Stanley Jug Drinking Straws Plug