Le Creuset Champagne Crown Sealer, 2.25", Black Nickel

This stopper works great! My bottles have kept their bubbles for four days, not sure how effective it will be longer than that yet.

Solid, works the best

This definitely keeps my champagne as fresh as it can. Read about it on a Car and Driver article, and they were right. This is the best option to preserve champagne. It fits most bottle tops except for Dom Perignon… but then again, once you open a bottle of Dom, it would be a sin to not finish it.

Very easy to use, durable and the seal keeps the champagne fresh. I was using one made by Rabbit, but the seal stopped working. Highly recommend.

Excellent product, keeps the champagne nice and bubbly for well over a week, haven't tried it for longer, but I am 100% happy with this product.

These are overpriced but the best

Bought this for a champagne lover. He had plastic ones before that broke after a while. He said this one works well and notices the difference in quality. I'm not one to know about these things, but just holding this, you can tell it's made well. It's heavy and sturdy. Worth the money spent.

Always a tight seal. Saves a bottle of champagne from going flat for days!