Unlike any other whiskey glass currently on the market, our crystal glass features a scale replica design of the Cascades' Mount Rainier running along the inside of the glass with the elevation of the mountain etched on the outside. Enjoy pristine whiskey without ice or stones. Just store the freezable whiskey glasses in the freezer, pour and enjoy. Our glasses chill and aerate bourbon, scotch, cocktails, tequila, and vodka as you swirl the drink around the face of the mountain. This Patented, 18-second Chill Charge Technology is approved by distillers and connoisseurs alike. The glass is made of high-quality crystal that is thick enough for any cocktail. The heavy glass is unbreakable making it ideal for your next BBQ party in the garden. No more worrying about your friends breaking your thin, fine crystal whiskey glasses. Any whiskey lover will be thrilled to have Liiton at their next 4th of July or Labor Day BBQ or summer pool party. They also make great wedding presents!