Features: 1.Perfect Fit: Engineered exclusively for 30oz tumblers, our 30oz tumbler flip straw lid replacements provide a seamless, leak-proof experience, ensuring your drinks stay secure and temperature-maintained without any spills. 2.Premium Materials: Constructed with high-grade, durable materials, our reusable tumbler covers are designed for longevity and sustained use. They are resistant to wear and tear, making them a reliable accessory for your tumbler. 3.Temperature Retention: Enhance your for tumbler's insulation properties with our replaceble tumbler flip straw lids that are designed to lock in temperature. Whether it's keeping your beverages ice-cold or piping hot, our lids ensure your drink stays at your preferred temperature longer. 4.Easy to Clean: Simplify your routine with our reusable straw caps that are dishwasher safe, making cleanup a breeze. 5.Snug Seal: Our dustproof tumbler lids are crafted with a precision fit to prevent leaks and spills. The tight seal maintains carbonation and freshness, so you can enjoy your favorite beverages on the go without worry. Specifications: Material: Plastic Color: Black,blue,green,gray,light blue,navy blue,white Size: 8.8*7.8*3.7cm Package contains: 1pc Cup Lid Note: 1. Please note that the photo does not show actual size, please refer to Description for size details. 2. Please allow differences due to manual measurement, thanks. 3. Due to the difference between different monitors, the image may not reflect the actual color of the item. The merchant warrants that their products comply with all applicable laws, and are offered only if they comply with Joom's policies and EU Product Safety and Compliance laws.