Anself 9pcs 18mm Whisky Ice Stones Drinks Cooler Cubes Beer Rocks Granite with Pouch

Features:
Ideal for drinking with whiskey or beer or other drinks.
Unlike ice cubes, they gently cool your drink without diluting them.
Durable, can be used again and again after you wash them.
Bring a mellow chill to the drink, don't melt or water down the good flavor.
The stone edges are rounded, preventing scratching.
The stones don't add any flavors or smells, safe to use.