Superior Wine Supply - Wine Preserver Vacuum Pump - With 2 Cork Air Stoppers Included - Superior Quality Longer Lasting Bottle Preservation Seal Wine Saver is a vacuum pump, which extracts the air from the opened bottle and re-seals it with a re-usable rubber stopper. Place the re-usable stopper in the bottle and extract the air from the bottle using the Wine Saver pump. Don't let leftover wine turn into vinegar. Use this Wine Preserver and Stoppers to extract the air, which causes the wine to break down, from the wine bottle and keep the remaining wine fresh, flavoursome and great to drink for up to two weeks. Air can't get in and wine won't leak out. The stoppers use a patented valve that holds a vacuum for days and releases it at the touch of the button so the remaining wine stays fresh for days. 100% Replacement, No Questions Asked, Lifetime Guarantee.