I've always thought that I already own in my kitchen - I knew this part yet.
Open Champagne, Crémant and sparkling wine is hereby breeze (but only if the garment fits on the closure) and works exactly as shown in the video. This saves helpless fumbling for beginners or for fixed cork.
And it should also be mentioned that the whole thing comes in a pretty package, is thus ideally suited as a gift - for people like me who already have everything!