The Fresh & Save wine sealer is designed to work with the vacuum pump so you can keep open bottles of wine fresh for longer. The sealer works by slowing down the oxidation process, to preserve the aromas of the wine, making it taste better even days after it's uncorked. Produced in high-quality stainless steel, the stylish, dishwasher-safe stopper is a cinch to clean.Here's how it works: Dock the vacuum pump onto the wine sealer and at the push of a button it extracts the air from the bottle in mere seconds. It stops automatically once a sufficient vacuum has been obtained, locking in the aromas and bouquet.