High Quality Ice Ball Tray: The whiskey ice ball maker is made of high quality silicon material. One half of the ice ball mold is made with flexible silicone and the other half of ball ice tray mold is made of polypropylene which is not easy to crack for years. Wide Temperature Range: This sphere mold ice ball maker tray can be used for wide temperature range, this silicon ice ball maker mold can be used in a refrigerator, microwave or oven, silicon ice ball can withstand temperatures from -40 degrees to 200 degrees. Elegant Design Ice Ball Trays With Lids: These silicone ice tray ball molds have a perfectly smooth shape, whiskey ice ball mold clear is easy to get out, just lift the silicone part of the ball ice cube tray abs ice will come down into the glass from silicone ball mold. Size of Ball Ice Cube Mold: Our old fashioned ice ball tray spheres ice cube mold comes in size of 6 x 6 x 2.5 inch. The size of each ice molds ball cell is 2.5 inches. There are 4 sphere cells in the whiskey ice ball maker round. upgrade your cold drinks with ice tray silicone. Easy to Fill and Clean: The ice silicone mold with water inlets and unique bumping seals ensure that your whiskey balls are formed perfectly round without leaking. 4 BONUS FUNNELS for you to conveniently fill up round ice ball tray for whiskey with water.