This is a dedicated stopper from a representative Champagne house, now difficult to obtain. Pommery Belle Epoque Charles Heidsieck Bollinger Comtes de Champagne Laurent-Perrier Ruinart Veuve Clicquot Mumm The wine cooler has the Champagne Knights of the Order mark. To use, chill it thoroughly in the freezer beforehand, and then take it out and place it over the bottle when needed. Please add this rare item, a must-see for enthusiasts, to your home collection.