Coravin Sparkling™ Stoppers 2-Pack is a set of two champagne stoppers from the Coravin brand. The champagne stopper fits all standard sparkling wine bottles, including magnum bottles. This way you don't have to choose between which champange or sparkling wine you're craving, or worry about the crisp taste and bubbles disappearing. Coravin Sparkling™ Stoppers are only compatible with the Coravin Sparkling™ Wine Preservation System, which closes tightly and preserves the bubbles for up to four weeks.