Bar Tools & Accessories -Better than ice cubes, these reusable soapstone chilling cubes keep drinks cold without diluting them, imparting flavor or scratching glasses. Just chill them in the freezer overnight and add them to beverages when you need them. Material: Stone, Also could be used for chill beverages, classic rocks, drink rocks, ice cubes, whiskey, whiskey rocks, whiskey stones, whisky, whisky rocks, whisky stones. By Cost Plus World Market.456511