#1 In France And Italy → With an incredible 88psi capacity, unique self-tightening seal and authentic Italian manufacturing, it’s easy to see why top Champagne Bars across Italy and France (and now USA) consider WAF Champagne Stoppers the only Professional Champagne Stopper worth using. While pressure pump bottle stoppers oxidize the taste of your bubbly, the WAF stopper keeps CO2 in the liquid. Fizzy, right to the last drop! How Does It Work!? → Don’t be fooled by what some call a ‘loose clip’, because it’s not the star of the show. Kloveo’s sparkling wine stopper is smarter than that. The seal uses a simple but brilliant physics principle (Pascal's Law). As pressure builds inside the bottle, the nodule expands outward, creating a ‘bubble-tight’ seal. Lay your bottle flat, or stand it upright and the seal works the same. BPA and Phthalate Free. Fits All Standard Bottle Necks → The shape of the bottle can be anything - if the neck is a standard 750ml Champagne or Sparkling Wine bottle neck (and we all know what that looks like), then this Champagne preserver will fit. It can be used for Prosecco, Cava, some Magnum and 187ml bottles, and many large format beer or cider bottles. And if you discover it doesn’t fit your favorite, it’s ok, you’re covered with our 90-Day Money Back Guarantee. Easy To Use → Unlike the outdated style of Champagne bottle stoppers (the exploding spring-loaded type), our WAF Champagne Saver is easy and fast. Simply press the cap down (the seal does the rest of the work for you), then lock with the stainless steel safety clip. It’s easy to release, even with arthritic hands! And, the key to max fizz is to seal your bottle right away, and keep it ice cold. Made In Italy → Similar Champagne corks say they’re Italian, but check the package and it’s China! The WAF Champagne bottle stopper is patented by Italian inventor Walter Fortunato (WAF) and manufactured in Italy. It’s the only stopper with a self-tightening seal, and easy release clip. And while some people tell us it provides the perfect fizz for up to two weeks, we say 3-5 days max. Try it now, and decide yourself!