SAVFY&reg; 9 PCS Whisky Chilling Rocks Ice Stones Drinks Cooler Cubes Whiskey Scotch on the Rocks Granite with a Muslin Pouch New great and innovative way to keep your whiskey or fine beverage of choice cool without watering it down The solid stays cold, ensuring a smooth and leisurely drinking experience Simply place them in the freezer about 2-4 hours, Ready to use in hours Unlike regular ice cubes, whiskey stones do not melt and dilute your drink; Well Preserve the Taste your favorite drink The approximate size of each stone is 2cm. Best to use 3 Rocks per drink. Perfect as a gift or for your next Cocktail Party