* Non-mechanical bottle carbonation stopper * Fits all NON bottles & most other crown-capped glass bottles * Designed to preserve carbonation and freshness for up to 7 days when kept cold. * Effortlessly slide onto the neck of the bottle and let the leak-proof, airtight seal lock in place. * To remove, simply slide off. * Patent Pending ABOUT "The NON STOPPER is the result of five years of banging my head against the wall to find an answer to how to prevent waste and maintain our product's freshness. Unable to find a solution on the market that suited our style, we enlisted the help of Vert Industrial Design House. Going beyond conventional methods, we opted for a design without mechanical parts.