COMPATIBILITY: Designed to fit Stanley 40 oz and 30 oz tumblers, with a 10mm opening perfect for standard reusable straws CUTE DESIGN: Adorable raccoon-shaped silicone topper adds a playful touch to your tumbler while protecting your straw FUNCTIONALITY: Acts as both a decorative topper and practical cap stopper to keep debris out of your straw when not in use MATERIAL: Made from durable silicone that's easy to clean and maintain VERSATILE USE: Works as a protective cover for various 10mm straws while adding a charming aesthetic to your drinkware Raccoon Straw Cover for Stanley 40&30 Oz Cup, 10mm Silicone Straw Covers Cap for Stanley Cup Accessories, Cute Topper for Tumblers, Cap Stopper for Reusable Straws Tip Lids