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