100% BPA free good grade silicone ice cube tray with cover; The ice ball spheres have passed FDA approved and allow -70 to 280 degree of heat-and-cold resistance. Elegant ice balls are perfect for whiskey, vodka, cocktails, beer, juice, coffee, water and so on. Freezes pretty much anything including ice, jelly, chocolate or even soap. The ice mold can make your drink more cooler. It is great for parties, summer and holiday gifts. Durable than plastic molds, dishwasher as well as microwave safe. Easy to fill, use and clean. Ice balls mold is gorgeous an it is a must have kitchen gadget which makes prefectly seamless ice balls. Taking the ice ball maker out of the freezer without a minute, you can gently open the hemispherical mold to get the complete balls.