Lajolla Wine Bottle with Air Vacuum Pump & Wine Bottle Sealer Stopper Combination for Wine Storage Wine stopper Sealer with vacuum pump feature Combined all-in-one The vacuum pump will extract the air from an opened wine bottle Keeps wine fresh much longer by removing all air from bottle Very Easy and efficient to use, just insert stopper and pump the lever to remove air Matarials:Aluminum alloy, PC, and silicon Food Grade