Mayshion Wine Bottle Stopper With Air Vacuum Pump Sealer Feature. [All in 1] Creates a Vacuum Tight Seal to Keep Wine Fresh,Silver Wine stopper Sealer with vacuum pump feature Combined Very Easy and efficient to use, just insert stopper and pump the lever to remove air The vacuum pump will extract the air from an opened wine bottle Keeps wine fresh much longer by removing all air from bottle When enjoy the wine again,revolve the stopper to take out the stopper.