Whether red, white, or rose, make the most of your favorite wines with the Glass Wine FREEZE cooling cup. HOST's proprietary cooling gel is precisely engineered to keep your beverage perfectly chilled for hours. For red wine, refrigerate HOST Glass Wine FREEZE Cooling Cups for at least two hours to keep your drink between fifty-eight and sixty degrees Fahrenheit For white wine and rose, freeze HOST Glass Wine FREEZE Cooling Cups for at least two hours to keep your drink between forty-three and fifty-three degrees Fahrenheit Inside the glass walls of the HOST Glass Wine FREEZE Cooling Cups lies our proprietary cooling gel. This gel was precisely engineered in house to provide the perfect temperature for white and red wines for hours Each glass is constructed with an insulated silicone band for comfortable handling. The set includes two HOST Glass Wine FREEZE Cooling Cups. Each glass can comfortably accommodate 8.5 ounces Hand wash only For the best results, place the Glass Wine FREEZE upside down in the freezer to allow the gel to evenly spread and freeze.