Features: Leak-Proof Design: Our tumbler lids feature a spill-proof flip straw and wide mouth for easy sipping, keeping your drinks secure and preventing messy spills during travel or daily use. Versatile Compatibility: Designed to fit a range of popular tumblers and mugs, including stanley cup and hydrojug traveler, our straw lids are interchangeable and suitable for various sizes, offering convenience for different drinkware options. Durable Construction: Made from premium-quality materials, our reusable straw covers are built to last and withstand daily use in home kitchens, restaurants, or on the go, providing a sustainable and long-lasting solution for your beverage needs. Enhanced Drinking Experience: The splash-resistant design of our tumbler straw covers ensures a smooth and enjoyable drinking experience, preventing splashes and spills while maintaining the temperature of your favorite beverages. Easy to Clean: These straw lids are dishwasher safe and easy to clean by hand, making maintenance a breeze and allowing you to enjoy your drinks without the hassle of complicated cleaning routines. Specification: Material: Silicone Size: 7.2*10.6cm Notes: Please allow slight tolerances in size due to manual measurement, and lighting in photography may result in a difference in color than in real. Include: 1*Straw Lid