Star Wars Death Star Silicone Ice Cube Mold Tray Maker [Set of 4] Blue These ice ball makers are made of food-grade flexible silicone, can withstand temperatures from -40H to 450H, BPA free Easy to use and clean, Freezer/Microwave/Dishwasher safe Makes a large ball of ice (2.4") decorated in the shape of the first Death Star based on its appearance in Star Wars: A New Hope Size: 3" X 3" X 2" Set of 4 pieces, blue