- Designed for Tumblers: Create three hollow cylinder ice cubes with our specialized ice cube tray, ideal for 40 oz tumblers. These unique ice shapes keep your beverages cooler and refreshing for a longer time compared to traditional ice cubes and balls. - Food-Grade Safety Material: Constructed from high-quality silicone and PP material, our ice cube trays are 100% BPA-free, odorless, and non-toxic. Enjoy peace of mind with a product that is safe for repeated use. - Easy to Use and Remove: Simply fill the trays with water, secure the lid, and place them in the freezer. After a few hours, effortlessly pop out perfectly shaped hollow cylinder ice cubes from the flexible silicone trays. - Convenient Cleaning and Storage: The included lid and container stack neatly in your freezer, protecting against odors and dust. The silicone tray is dishwasher safe for easy cleaning, while the lid and container should be washed by hand. Allow to air dry and store in a dry place. - Practical Use Scenarios: - Perfect for keeping your favorite cocktails chilled at summer barbecues. - Great for enhancing the refreshment of iced coffee or tea during warm afternoons. - Ideal for adding a touch of sophistication to parties and gatherings with unique ice shapes. Experience the perfect blend of functionality and style with our hollow cylinder ice cube tray, designed to elevate your drink experience.