The Concerto savor is to be used with the Concerto stoppers. Easily insert the stopper into the opening of a wine bottle then seal it properly with this Concerto Vacuum Wine Savor. These wine stoppers can be used time and time again allowing for the freshest tasting wine up to two weeks after the cork has been removed. Once the stopper is properly sealed the savor will click indicating it is finished. Simply re-open the bottle by pushing the small button in the center of the cap and it lifts right off. Easy to use and is perfect for saving the taste of your favorite wine until the next time you're ready for a drink.