1. 304 stainless steel is selected, the plastic mouth is acrylic plastic, the sealing ring is silicone, and the internal liquid is pure water + edible ethanol. The total amount of liquid accounts for 80% of the volume of the sealed space of the stainless steel rod. The surface polishing effect is mirror. 2. Put the dry freezer stick in the refrigerator for at least 2 hours, then turn on the wine, let it aerate for 15 minutes, pour out some wine, and insert the red wine freezer stick into the bottle, it will perfectly keep your red wine refrigerated for up to an hour . 3. Suitable for cooling whisky, vodka, liqueur, white wine, etc., to maintain the best drinking temperature. 4. This product can only be hand washed, after each use, just rinse the cooling rod with cold water and pour it out, it can be reused. 5. It is the best gift for wine lovers.