Champagne = Answer

CapaBubbles® is a reusable silicone cap that reseals a bottle of sparkling wine once it is opened. An adaptation of the original CapaBunga®, it transforms a bottle of sparkling wine into a screw cap bottle. The cap has a threaded insert that once unscrewed from the base clips under the flange of the sparkling wine bottle, the cap is then twisted down on top of this piece preserving the bubbles in your Champagne or Sparkling wine for up to one week.

DO NOT OVERTIGHTEN as it may cause the cap to crack.
It is simple to use with the added bonus that the low profile means it can easily fit in a fridge door and a user can control the amount of effervescence unlike a traditional bouchon stopper where gas escapes abruptly. The video below also shows clearly how CapaBubbles works.

1.75 x 1.75 x 1.75 inches
Made of Food Grade Silicone

To remove the clip after finishing the bottle. Check to make sure you are trying to open the right side opposite the pin. Use the thumb tabs and pull away from each other. If still too tight slide a butter knife under the tab & pull apart and away from the pin. The key is to make sure you’re not doing this on the side where the pin is.

Rinse under running water if necessary and store in tube when dry.