ICE Balls Maker Round Sphere Tray Mold Cube Whiskey Ball Cocktails Silicone Each ice mold makes FOUR 1 3/4" ice spheres, that are slower melting that traditional ice cubes Ice tray is sealed and balanced and will not leak or tip in the freezer Made from dishwasher safe BPA free food grade silicone that won't break Ice releases easily from silicone ice ball molds and does not crack while freezing. Easy to fill and easy to release