3 Removable Lid: Stack the tray ice cubes with a lid to keep it clean and prevent the freezer compartment from absorbing odors (Note: the lid is just an additional lid and cannot prevent leaks.< br />Silica gel (food grade): The ice cube tray is made of silica gel and PP, without BPA and LFGB certification. Silicone base easy release: the unique design of the silicone base makes it easy to remove ice cubes.Rinse the bottom with water, press the bottom, the ice cubes will come out quickly. Mini ice cube box: Each bowl holds a total of 6 to 18 large ice cubes (3 x 3 x 3 cm). Easy to clean and reusable: they can withstand temperatures from -20 to 20 to 240C and can be safely used in refrigerators urs and microwaves. Very suitable for freezing and storing baby food.