40oz Leakproof Tumbler With Lid & Straw Cover - 4pc Reusable Cup Set. Description: Elevate Your Tumbler Experience with the Silicone Spill-Proof Stopper and Protective Boot Set, Perfect for 30oz and 40oz Models. This Innovative Set Features a State-of-the-art 3-layer Leak-proof System, Ensuring Your Beverages Remain Secure and Spill-free Wherever You Go. The Anti-slip Silicone Boot Not Only Safeguards Against Dents but Also Minimizes Noise, Offering a Quieter, More Enjoyable Sipping Experience While Prolonging Your Tumbler's Life. The Set Includes Everything You Need: a Protective Boot, a Straw Cap, and Both Square and Round Spill-proof Stoppers, for a Seamless and Hassle-free Experience. Available in a Variety of Colors—transparent, Pink, Blue, White, and Black—it Combines Functionality with Style, Making It Perfect for Personal Use or As a Thoughtful Gift. Summary of Features: - Leak-Proof Design: 3-layer Sealing System to Prevent Spills. - Durable Protection: Anti-slip Boot Protects Against Dents and Reduces Noise. - Compatible Sizes: Fits 30oz and 40oz Tumblers. - Complete Set: Includes Protective Boot, Straw Cap, and Spill-proof Stoppers. - Stylish Options: Comes in Transparent, Pink, Blue, White, and Black. - Quality Material: Made from Durable, High-quality Silicone. - User-Friendly: Easy to Attach and Remove. - Versatile Use: Ideal for Travel, Outdoor Activities, and Everyday Life. Upgrade Your Drinkware Collection with This Practical and Stylish Set..