Peugeot 210052 Double Action Pump for Wine and Champagne Double Pump set includes: one pump, one champagne stopper and two wine stoppers Double action pump allows you to preserve wine and champagne Wine setting uses a vacuum effect: oxygen is pumped out of the bottle, thus reducing the potential for wine to continue breathing and over-oxidizing Champagne setting pumps air into the bottle, re-pressurizing and preserving the bubbles of the unconsumed champagne or sparkling wine Great for saving leftover wine, sparkling wine or champagne to enjoy later