Thoughtful Design: Specifically designed to be perfectly compatible with Stanley cup straws, these premium silicone straw cover caps assure you of a good fit every time. No more worries about wrong sizing as these straw covers cap are crafted to fit Stanley tumblers of 30 and 40 oz capacities seamlessly, thus delivering an unmatched user experience. Premium Material: Our straw covers are made of high-quality food-grade silicone, unlike Universal straw covers that use PVC. The nature of these straw caps ensures that there is no unpleasant odour. Moreover, cleaning these straw covers is breeze, thus adding to the hygiene factor effortlessly. Hygiene Assured: These silicone straw cover caps are designed to protect your straws from being contaminated by dust, spittle, mosquito intrusions, and other environmental pollutants. By keeping your straws and cups properly protected, these straw covers help in maintaining the hygiene quotient to a great extent. Perfect Fit: Crafted with precision, these straw covers are an Perfect fit for the large Stanley straws having a diameter of 9-10mm or 0.35-0.4 inches. The Dust-Proof and Reusable Straw Tips massively enhance the usability and lifespan of your straws and cups. Thoughtful Gift Choice: With their cute animal shape design, these straw covers serve as a great gift choice for cup lovers. Easy to slip on and off, these straw covers boast of reliable quality. Not just their functional value, but with their engaging design, these covers are sure to impress every cup enthusiast. Colour:As Shown Material:PVC Package Contents: 5 x straw cover caps Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.