Just pop our Martini FREEZE™ in the freezer for 2 hours, pour your favorite martini and enjoy! Proprietary cooling gel freezes solid inside the double-walled chamber, providing thermal insulation that keeps your drink cold for longer. For frozen concoctions, freeze HOST® Martini FREEZE™ Cooling Cups for at least two hours to keep your drink between forty-three and fifty-three degrees Fahrenheit. Each cup is constructed with an insulated silicone band for comfortable handling. The set includes two HOST® Martini FREEZE™ Cooling Cups. Each cup can comfortably accommodate 9 ounces. Hand wash only. For the best results, place the Martini FREEZE™ upside down in the freezer for 2 hours to allow the gel to evenly spread and freeze.