The Wine FREEZE XL is precisely engineered to keep your beverage perfectly cold for hours. Each stemless tumbler is constructed with an insulated silicone band for comfortable handling, and can easily accommodate 12 ounces. Hand wash only. For the best results, place the Wine FREEZE XL upside down in the freezer to allow the gel to evenly spread and freeze. Originally developed for wine, the HOST FREEZE line has grown to include popular whiskey tumblers, beer drinkware, cocktail glasses and other cooling accessories in dozens of colors. HOST's beverage accessories solve everyday problems with creative engineering. From versatile wine accessories to chilling drinkware, these easy-to-use gadgets make life refreshing for everyone.