Come and see our amazing products. Before using the wine bottle freezer bag, you need to put it in the refrigerator freezer for 1 or 2 hours until the liquid turn into frozen. Then put wine or beer in the bag and it starts to cool and it works very fast and well. Easy to carry with two handles,which is a good thing you have to take or a cool beer to take with you when you are at the picnic or outdoor activity. Pls confirm with us about the packing info, stock color and exact production time before placing your order