Pivot Stoppers (Pack of 6)Replace your wine bottles 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 plastic, 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.