Silica gel material (food grade): Like other ordinary silica gels, silicone oil will not leak out, making the beverage undrinkable. The ice cube tray is made of 100% silicone, BPA-free, and LFGB certified. There is no unpleasant smell. 2 removable lids with handles: the lid is easy to remove and ice cubes will not stick to the lid. Use lids to stack ice cube trays and protect them from the odors generated by the freezer compartment. Easy demoulding: Our products have anti-adhesion design on the bottom. Each ice cube is a pure cube, and the silica gel is very soft. You don't have to wait for it to cool down. You can easily squeeze out ice cubes at any time without having to take them out firmly, thus making the product last longer. Extra large ice cube box: Each bowl contains 4 extra large ice cubes (6 x 7.5 x 4.3 cm), a total of 8 pieces. You can not only fill the ice machine with water, but also with cocktails, whiskey, red wine, fruits, purees and ice cream, supplementary food, baby food or candles. Suitable for microwave ovens and dishwashers: they can withstand temperatures from -40 to 240C and can be safely used in refrigerators and microwaves. It is very suitable for storing baby food, DIY candles, and baking cakes.