Made of food-grade 304 stainless steel, silicone and ABS, BPA-free, safe to use for wine and drinks. Can chill the wine quickly and keep your wine at the steady temperature of the optimum taste. Great for adding your brand then giving as a gift to your valuded customers. Additional information: Place the chiller in the refrigerator for minimum of 2 hours, then open your wine and let it aerate for 10-15 minutes, pour off some wine to allow the chiller to be inserted into the bottle; Be sure to hand wash wine chiller only.