Cool Down Your DrinksThe liquid insides the ice cubes are some water (74.8%), glycerol (23%), and other food-grade chemical elements (2.2%) which are non-toxic and safe. The lowest freezing point is -46.5℃ / -51.7℉.Silicone Ice Tongs & Storage TrayA BPA free rubber-tipped ice tongs and an ice cubes storage tray are included in the package to give you more convenience, to pick up the chilling stones easily and protect the cubes from scratch.Authentic Taste Starts HereKollea whiskey stones made from stainless steel create the possibility to quickly lower the temperature of your drinks while not spoiling the straight-from-the-bottle taste. They will never water down like usual ice cubes do, reusable and much practical.Entertain Your Guests Like EverGood times are always short-lived yet happy memories last forever. Bring these ice cubes to a party or dinner, get them into whiskey, vodka, beer, wine, or other beverages to cheer, keeping your drinks cold to the last drop! You name it!