Just pop our Tumbler FREEZE in the freezer for 2 hours, pour your favorite beverage and enjoy! Our proprietary cooling gel freezes solid inside the double-walled chamber, providing thermal insulation that keeps your drink cold for longer. For a frosty beverage, freeze HOST Tumbler 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 iced tea, a soda pop, or a chilled coffee, keep HOST Tumbler FREEZE Cooling Cups in the freezer so they are ready to go when you are. Inside the BPA free plastic walls of HOST Tumbler 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 Tumbler FREEZE Cooling Cups. Each cup can comfortably accommodate 16 ounces. Hand wash only. For the best results, place the Tumbler FREEZE upside down in the freezer for 2 hours to allow the gel to evenly spread and freeze.