Size: 9 oz. Keep your drink properly chilled, without watering it down, in the Glass Whiskey FREEZE� Cooling Cup. After just 2 hours in the freezer, HOST�'s proprietary cooling gel will keep your favorite spirit cooled for hours, while subduing the overpowering flavor most common in cask strength whiskey. For a smart cocktail anytime, freeze HOST� Glass Whiskey FREEZE� Cooling Cups for at least two hours to keep your drink between forty-three and fifty-three degrees Fahrenheit. Whether you`re in the mood for on the rocks, an old fashioned, or something sour, keep HOST� Glass Whiskey FREEZE� Cooling Cups in the freezer so they are ready to go when you are. Inside the glass walls of HOST� Glass Whiskey FREEZE� Cooling Cups lies our proprietary cooling gel. This gel was precisely engineered in house to keep any beverage the perfect temperature for hours. Each cup is constructed with an insulated silicone band for comfortable handling. The set includes two HOST� Glass Whiskey FREEZE� Cooling Cups. Each cup can comfortably accommodate 9 ounces. Hand wash only. For the best results, place the Glass Whiskey FREEZE� upside down in the freezer for 2 hours to allow the gel to evenly spread and freeze.