Basalt Whiskey Stones. These stones keep your drink ICE COLD without watering do the the drink! Perfect gift for your groomsmen, Frat Brothers, Dad, Grandpa or anyone who likes their drinks cold and not watered down.  Each stone has one side engraved with your artwork  and the stones are approximately one  inch" 
There are 9 stones in the set and comes with a velvit pouch to store the stones