Keep your cocktails icy cold without being watered down by ice with the Iced Martini. The durable acrylic glass features a double wall designed cup with a non-toxic, re-freezable liquid in between. The acrylic martini glass is break resistant, so it"s great for indoor and outdoor use.To use, just place the 10 oz. martini glass upside down in your freezer for a couple of hours. Then fill your glass with your favorite beverage and enjoy! The acrylic martini glass is also a unique way to serve shrimp cocktail, ice cream or sorbet, and much more!