[Silicone Material]: The ice cube trays are made of silicone and PP, are BPA free and LFGB certified, they do not smell strangely and are more suitable for making pure ice cubes. [Reusable]: Withstands temperatures from 20 to 100°C and is safe to use in the refrigerator and microwave. Ideal for the freezer and for storing baby food. [Easy Release With Silicone Base]: The unique design of the silicone base makes it easy to remove ice cubes. Rinse the bottom with water, press the bottom and the ice cube will come out quickly. [4 Removable Lids]: Use the lids to stack ice cube trays, keep ice cubes clean and protect from odors collected by the freezer. Close the lid to prevent leaking. [Widely Used]: You can enjoy a refreshing drink with ice in cocktails, orange juice, whiskey or other drinks. In addition to water, you can use fruit, ice, soda or wine to keep fit.