10mm/0.4inch Straw CoversUnlike most straw caps on the market, this straw cover is specifically designed for stanley cup straw. You don't have to worry about the wrong size, perfectly compatible with stanley 30&40 oz tumbler with handle straws! Note: Straws are not included, please wash before first use. 12Pcs stanley straw coverYou will receive 12 different colors of dustproof straw caps, with a variety of colors and sufficient quantities to meet daily use and replacement needs. Dust proof, practical, and hygienic This silicone straw cover not only looks exquisite, but also very practical. It can prevent dust and saliva from entering your drink, as well as prevent mosquitoes or cats from kissing your straw, keeping it clean. The 12 colors make it easy to distinguish crowds and avoid the embarrassment of holding the wrong cup. Food-grade silicone material unlike ordinary PVC material straw covers cap, our straw covers cap is BPA free, and there is no unpleasant smell, you can use it without worry, cleaning it is a breeze! Which is safe and reusable. Perfect GiftStraw tip covers make great gifts for friends and family, elegant design that adds a touch of sophistication to your cup. Our straw covers caps are lightweight and portable, and suitable for hiking, travelling, camping, picnic,etc. It can also be used as a gift for family, teachers, coaches,