Mr. Freeze (Tm) 5x Round Ice Ball Maker Tray Four Large Sphere Molds Cube Whiskey Cocktails 5 Pack!!!! 4x Ice Ball Maker Tray Mold - Large Ball Sphere Circle Molds For Whiskey, Cocktails and More! Stylish Way To Keep Your Ice Cold Longer To Prevent The Ice From Diluting Your Beverage. Make 4 ice balls at a time about 2"/4.5cm in diameter Made of food grade silicone. Safe / Non-Toxic / Soft. Easy to fill and remove ice balls. Washable and Reusable.