silicone , is more and safe to eating. The foldable does not take up space, and it is more convenient to carry. It does not take up space in the refrigerator. It is ice tray mold and ice bucket, and it is convenient to carry when going out. It is very suitable for iced cocktails, beer, drinks, coffee, fruit. The silicone is easy to and off. The color is good-looking, it is a good tool for your friend to make for outdoor camping dinners, family gatherings.