Champagne Stopper Champagne Bottle Stopper Stainless Steel Stopper for Champagne Vacuum Sealed for Wine Bottle Stopper Prosecco, Sparkling Wine Stopper Instructions: Place the champagne bottle stopper on the bottle and press down on both wings. Material: stainless steel and silicone. The champagne stopper is dimensionally stable, non-slip, rust-proof and corrosion-resistant. Application: It fits all champagne bottles, closes airtight. For example: it fits all prosecco, champagne or sparkling wine bottles (including bottles with screw thread). But not for wine. Keep fresh: Opened sparkling wine, prosecco or champagne bottles stay fresh for days with bottle closures and can be stored leak-proof (even lying flat) in the fridge. If you can't finish a bottle of champagne, don't worry, with a champagne stopper you can also drink fresh wine the next day.