Review on Rabbit Whiskey and Beverage Jumbo Chilling Stones Set: Chrome Cooling Cubes for Optimal Drink Experience by Joseph Whiteman

I use them to sip bourbon. I've been using whiskey stones for a while but they never got my drink up to my preferred temperature. These whiskey chillers will make your drink a little colder than rocks (although not as cold as ice) without diluting the drink. They contain some liquid so stay cold longer unlike stones which give up pretty quickly. For me it was the perfect drinking experience. I can now add some water if I still want, controlling the flavor as I pour rather than constantly diluting it with water while your ice cream melts. Easy to clean, fits most glasses, freezes after a few hours.