The Wine Saver pump can help to create an airtight vacuum that preserves wine, professional stopper to keep wine fresh. Once the bottle has been opened, prevents the oxidation process that is responsible for the deterioration of wine, can keep wine fresh and tasty even for 14 days.
Easy to Use: 1: Put the black bottle stopper into the wine bottle mouth. 2: Put the wine saver pump to connect the stopper's top. 3: Pump the air out until you fell strong air resistance 4. Finished and building a vacuum condition to kee your wine fresh.