PVC Wine Bottle Shrinkwraps have two functions. They present the finished bottle of wine in an appealing way, but they also improve the storage of the wine by further reducing the amount of oxygen that can move into the wine through the cork.
They are easy to apply. Simply pull the shrinkwrap down over the bottle neck tightly and use either the steam from your kitchen jug or a hair dryer to gently shrink the plastic onto the neck. turn the bottle in the heat source to get it to shrink evenly.