Natural Stone whisky stones can chill your whisky, wine, liquor and vodka without diluting it. Unlike ice, whisky stones are non-porous and thus odorless, stone won't melt but can have the effect of cooling your drink!
Stone is famous for its function to provide for a more sustained chill.
They look great in the glass
The stones stay at the bottom of the glass
The stone edges are rounded, preventing scratching