The Sea Stones Drink Chillers - Set of 2 puts your drink on the rocks, literally. Simply place the glasses within the solid granite coasters, framed with recycled rubber jackets, into the freezer a minimum of two hours before serving. The granite cubes keep your beverages chilled, without adding unwanted taste or watering down the drink. Each custom-molded rubber jacket and stone insert is a matched pair, so be sure to take note of each pair"s orientation for easy reassembly after cleaning. Created with FDA food-safe solid granite, recycled rubber, and recycled glass. This set makes it so easy to be a good host! About Sea Stones Sea Stones, LLC, is based in Windham, New Hampshire, close to the rocky New England beaches and rivers that shape the stones used in the company"s designs. Engineer/furniture maker Arra David and artist Anne Johnson partnered in 2004 to bring the beauty of nature into homes, while still leaving America"s shores and forests unchanged. With permission, the company collects stones from private beaches and rivers. When a stone is taken, it"s always replaced by a new stone that"s been purchased from a quarry to harvest under the New England water for future gatherers. David and Johnson believe that bringing natural materials indoors as functional art keeps the world connected with Mother Earth. Sea Stones was a finalist in the 2012 Eco Choice Awards at the New York International Gift Fair. * 2 natural granite stones, recycled glass * Keeps drinks cool without diluting * Rinse rocks with water prior to and following each use * Contemporary style for everyday use * 1.5-in.-sq. rocks; 10-oz. glasses