[Revolutionary Design] - Our silicone ice-cube tray with a lid is specifically crafted for 20-40 oz tumblers, allowing you to create 1-3 hollow cylinder ice-cubes per mold. Customize your ice-cube sizes based on your glass dimensions for a perfect fit. [Fresh Flavor] - The securely fitting and removable lid keeps your ice-cubes fresh and pure, preventing dilution and contamination in the refrigerator. [Longer Cooling Effect] - Our innovative hollow cylinder design produces larger ice-cubes with a smaller surface area, reducing melt rate and extending the cooling effect of your beverages. [High-Quality and Safe] - Constructed from premium silicone, our ice-cube tray is odorless, non-toxic, and safe for repeated use. It is flexible, allowing for easy ice-cube release without cracking or breaking. Additionally, it is dishwasher safe for effortless cleaning. [Versatile and Convenient] - Suitable for 20-40 oz tumblers and mugs, this ice-cube tray is ideal for chilling drinks, making ice for cocktails, whiskey, beverages, and coffee. It enhances convenience and enjoyment, making your drinks more delightful. Colour: D: Blue Material: Silicone Package Contents: 1 * Ice-Cube Tray 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 to differ slightly from the actual product. The measurement allowed error is +/- 1-3cm.