Once wine has been opened, it is important to preserve it properly so as to enjoy the rest of the bottle another day. The Le Creuset wine pump preserves wine by removing air from inside an opened bottle, then tightly sealing it using a durable stopper. By simply placing a stopper in the bottle and pumping several times, the wine is sealed and ready for storage. Comes with a set of 3 stoppers to keep bottles sealed. Bottles are secure enough to be stored horizontally.