Features:Brand new and high quality.Made from premium GraniteGlacier rocks are a great way to cool your favorite drinksUnlike ice cubes, they gently cool your drink without diluting them.Made from "soft" stone, Round edges to avoid scratchesThey are also inert to keeps your drink cool but won't affect the flavorEasy to use, simply place in freezer for 1-2 hours before use (suggested)Dishwasher Safe.Non-Toxic Coolant.Great for whiskey, vodka, liqueurs, white wine, Coffee, Soft Drink and moreSpecifications:Each stone size:20 x 20 x 20 mmNet weight:202 gPackage weight:232 gColor:GreyPackage Included:1 x Whisky Stone