whiskey stones stainless steel ice cubes- Whisky Chilling Rocks -Pack Of 8 -Reusable Wine Stone Durable Beer Drink Freezer Cooler Rock-USA Warehouse Fulfilment by US.Rich style selection caters to different atmospheres. Perfect for many occasions! Such as Valentine's Day, cocktail party, anniversary, Christmas, birthday etc. Also best as gifts for scotch or bourbon lovers. Iced effect more lasting in time than normal water ice cube, uses the principle of physical cooling, cooling power is about twice stronger. Will not melt and affect the taste and flavor of drinks, best companion of liquor. FDA approvaled SUS 304 food-grade stainless steel, Never Rusts or Corrodes or Wears, safe for use. With plastic storage box for storage concern, decent use and organization. Freezing level according to personal preference by adding different amount of Whiskey Stones. Internal refrigerant freezing point reached minus 50 degrees Celsius, cooling power is about twice stronger than the same volume of water ice cube. It&#039;s different from soapstone cube, which could disintegrate over time and have some flavor that would affet the taste.