20/30/40 oz Tumbler Ice Mold Our silicone ice mold creates three specially designed hollow cylinder ice cubes. The 1st 2nd 3rd ice cubes are perfectly compatible with 40 Oz tumbler cup. The 1st+2nd ice ring cubes can be used for 20 Oz-30 Oz tumbler cups (Notice: The 3rd ice cube is not compatible with the 20 Oz and 30 Oz tumbler) Versatile Size The 1st 2nd 3rd ice cubes all are 2.8 inch height and 0.47 inch thickness. The outer diameter of 1st 2nd 3rd hollow cylinder ice cubes are 2.4 inch, 2.8 inch and 3.34 inch. The large ice cubes keep your drinks cold longer, ensure a slower melting rate and help maintain the drink's temperature without diluting it too quickly. Package List: 1 Pack Tumbler Ice Mold (The Cup is not Included） Thick Silicone Material Made from Long-lasting and safe silicone material, our ice cube mold is food-grade, odorless, BPA-free, and leak-free. You can freeze with confidence. Easy to Operate Simply pour water into the tray, cover it with the lid, place the ice tray with lid and bin in the freezer, and when it's time to enjoy your drinks, just twist to release the ice cubes. After taking it out from the freezer, please wait for 20 seconds or pour some warm or hot water around the ice tray for better ice release. Easy to Clean/Store Ice cube trays with removable lids can be stacked in the freezer, keeping odors and dust out to maintain the freshness of your ice cubes. Rinse off it by hand or using dishwasher. Air dry and stack them in the dry place. Perfect for chilling drinks like whiskey, cocktails, juice, tea, or coffee.