Mayshion Transparent Wine Bottle Stopper & Air Vacuum Pump Sealer Feature. [All in 1] Creates a Vacuum Tight Seal to Keep Wine Fresh Wine stopper Sealer with vacuum pump feature Combined all-in-one Very Easy and efficient to use.With the 2 in 1 feature It is very easy to use as it is quite handy and practical. 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.