Replace your wine bottle's cork or screw cap with a Pivot Stopper, and pour a glass at a time with the Pivot Wine Preservation System, preserving the remaining wine for up to 4 weeks. Made using specially designed sealing silicone, each Stopper can be used again and again. Six Pivot® Stoppers included, compatible with most regular shaped bottles. Only compatible with the Coravin Pivot Wine Preservation System.