The Wine Saver is a vacuum pump that extracts the air from an opened bottle of wine 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. No guessing whether enough air has been extracted because a "click" sound tells you when you have reached the optimum vacuum level. The vacuum slows down the oxidation process so that you can enjoy your wine longer.
Do not use with sparkling wines.