Strong flexibilitySilicone Ice Cube Tray is designed with strong flexibility, ensuring it remains intact and undistorted during low temperature refrigeration or stretching and kneading. Food-Grade Silicone materialOur ice cube moulds are made of premium food-grade silicone, BPA free and odorless, they can direct contact with food, safe for drink & food making. Low and high-temperature resistant-24 to 230), safe to use in freezer, refrigerator, dishwasher and oven, ensures safety and durability. Stackable and Removable LidDesign with removable lids for easy stacking, also keep the ice cubes clean. Covered ice trays help prevent evaporation, over-freezing or contamination. These covered ice trays stack easily and neatly in the freezer without sticking, and also keep your freezer clean and tidy. Easy to ReleaseThe flexible silicone ice tray material shapes the bottom well, and the smooth interior and bottom walls make it easy to pop out ice cubes. Just flex the tray and push the individual cubes out from the bottom. Easy to CleanSmooth silicone surface makes it easy to cleanYou can put them in the dishwasher or rinse them with tap water without causing any damage. Note that only the tray is dishwasher safe, but the lid is not.