Give “on the rocks” a new meaning and take advantage of the cooling ability of natural stone.
Ensure that whiskey, white wine, gin tonic, soda, lemonade, etc. will be served at the proper temperature.
Simply store in the freezer until you fancy a cool drink, then enjoy without that watered-down taste.
After use, just rinse under warm water.
Set of 9 cubes and a storage pouch.