A champagne stopper is designed to seal and preserve the carbonation in a bottle of champagne or sparkling wine after it has been opened. When you open a bottle of champagne, the carbon dioxide gas that gives it its bubbly nature starts to escape, causing the champagne to go flat. To prevent this, you can use a champagne stopper to reseal the bottle and maintain the effervescence for a longer period.

1. Open the bottle of champagne by carefully removing the wire cage and the cork.
2. Pour the champagne and enjoy your drink.
3. Insert the champagne stopper into the bottle neck, ensuring the rubber or silicone seal is fully inside the bottle.
4. Close the hinged clamp over the cork or cap to secure the stopper in place.
5. Store the sealed champagne bottle upright in a cool and dark place, such as a refrigerator, to maintain its freshness.