-FOOD GRADE STAINLESS STEEL: Contain a food grade chilling gel that becomes frozen in the center of each cube, allowing for extended chilling time and minimal freezing time (1-2 hrs.)
-CHILLS WITHOUT DILUTION: Made from stainless steel material that won't rust or corrode and that holds a cold temperature incredibly well, it will not affect your drink's flavor.
-EASY MANAGEMENT: They are easy to clean and also dish washer safe. Because they come with a nice little drawstring pouch, they can easily fit in any freezer.
-CAN BE USED IN ANY BEVERAGE: Besides whiskey, you can also put into beer, water, protein shakes, pop or juice.
-FUNCTION REALLY WELL: They are better than any other whiskey rocks, which are also heavier. The lowest freezing point is -46.5°C/-51.7°F. They keep whiskey during the most ideal temeparature range for drinking which is 45°F-60°F.