The solution to diluted drinks is here. Chill Whisky and Spirits without watering them down with this set of nine marble whisky stones. They stay cold longer than ice and will add a touch of elegance to your drink. Simply place the stones in the freezer and, in a few hours, they'll be ready to use. Included is a practical black velvet storage bag for easy transport or storage when not in use. Now you can enjoy a whisky on the rocks, literally.