Ice robs flavors and aromas by deep freezing fine spirits. On The Rocks Granite Whiskey Chilling Stones are ideal for sipping scotch and other whiskeys and spirits at temperatures that enhance your drink without watering it down. One stone is all that''s needed for the ideal chill without closing down the flavors. Our stones stay cool long enough for you to leisurely enjoy your fine libation. American sourced granite is exceptionally dense and stays cold longer than other stone types. Granite''s inert properties mean it never crumbles and adds no impurities, flavors, or odors to your drink, preserving its intended taste. The round contours and handcrafted edges of our stones allow them to swirl smoothly around the glass without scratching. Our unique shape keeps them safely and predictably on the bottom as you sip. Wash and chill for at least 2 hours before use. Six granite chillers.