Utensy Whiskey Stone Set - Set of 9 Grey Whiskey Premium Chilling Rocks Set of 9 FDA approved 100% non-porous soapstone's that will chill your favorite beverages without dilution Soapstones can be reused for years just rinse and refreeze; Use these stones to chill your favorite cocktails, scotches, whiskeys, or other liquors & wines. Store your stones in the freezer, and when ready for use add 3 stones per 2 ounces of spirit to cool. Rinse under warm water, dry, and return to the freezer in the supplied carrying pouch. Perfect As A Gift or for Your Next Cocktail Party