Fully-insulated slow-freezing method for ice production creates 2.4 crystal-clear ice spheres Attractive gift box packaging will impress the avid bar and drink enthusiast Slow-melting ice is a must when you break out your aged scotch, bourbon or whiskey Silicone mold inserts and an insulated immersion reservoir, specially-designed to minimize gas particles in the ice, resulting in crystal-clear balls of ice perfection every time. No need for distilled water or boiling water; add warm tap water and our Crystal-Clear Ice Ball Maker will do the