Whiskey Stones: Stainless SteelServe up an impressive looking and refreshing ice cold drink with this 5 piece set of 304 stainless steel cubes. Each sealed cube contains food grade alcohol and water inside and only needs to be in the freezer 2 to 3 hours prior to use. Reusable and for use in any beverage. Caution: may pose a choking hazard for younger children. Not a toy. Note: this item is sourced from an out of province supplier and may take 2 4 weeks for delivery.