Like your favorite beverage on the rocks. Our booze cubes will keep your favorite beverage cold without diluting it. Our booze cubes are recycled material made from the cores taken out of our stone drink dispenser. Each tube comes with 4 black and 4 gray cubes packaged in a set of 8. Freeze for three hours. Add two cubes and cover with your favorite spirits about 2 oz. Let stand for five minutes and enjoy.