Truly unique and unlike any other whiskey glass on the market, LITTON glasses feature a stunning mountain range design inside. The mountainside rocks and stone designs gently aerate the whiskey by mixing it with air. No need for an aerator or decanter to let the whiskey breathe and "open up". Made from premium, high-quality lead-free crystal, LIITON also features the Chill Charge system, which cools the whiskey in 18 seconds. Simply store the glasses in the freezer before using them.