Specially Designed for Tumbler Cup: The hollow cylindrical ice cubes increase the contact area between the liquid and the ice cubes, thus cooling the drink quickly. The ice created by this ice mold ensures that the drink remains cold for long times, and the slower melting of the ice ensures that the drink is not diluted and retains its flavor. Unique Separate Design:The separate design is more to save space in the refrigerator. The bottom of each ice compartment is hollowed out, allowing them to be stacked in order. The ice mold feature a hollow cylindrical design. With 3 different sizes of molds, you can choose the right ice cubes or stack them on top of each other, perfect for 20/30/40Oz Tumbler and cups. Lid Seal Design: This cup ice mold comes with a lid, we increased the fit of the lid to the inside of the cup, no need to worry about it being contaminated with other odors when placed in the fridge at all.In addition, the lid still 't fall off when the cup is filled with water and inverted. Let you enjoy pure ice cubes, your drinks stay delicious and your refrigerator stays clean. High Quality Silicone Material:Our molds are made of food grade silicone material, odorless and free. Each hollow cylindrical cup ice mold comes with a lid for the freezer. Easy to Operate - The flexible silicone mold makes it easier to remove the ice cubes.Just peel off the outer mold and squeeze the cap to release your fresh ice. It's super , way those flimsy plastic trays and easier to clean and store.Perfect for making your favorite chilled drinks! Material: Silicone colour: Green Package Contents: 3 x Ice Mold 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 a little different from the real thing. The measurement allowed error is +/- 1-3cm.