Many people enjoy whiskey with a "splash," or "on the rocks."
But you don't want your good whiskey served ice cold, or over-diluted
Plunks are not your average whiskey stone. When frozen, a thin layer of ice surrounds each stone. As the 1/3 ounce of ice slowly melts into your whiskey, it releases and enhances the flavor. And the stone remains.
Your drink stays cool (not cold) without ever becoming over-diluted.
Denver, Colorado USA