[Versatile Fit]Designed to accommodate a variety of bottle necks (15-20mm diameter), these versatile stoppers a tight seal on most wine bottles, champagne bottles, and other common beverage containers, safeguarding the contents from spoilage. [Superior Construction]these wine bottle stoppers promise durability and ease of use. Their sophisticated design not only seals bottles effectively but also adds of class to your bottle service. [Enhanced Freshness]Our advanced sealing technology minimizes oxygen ingress, preserving the delicate flavors and bouquets of your wines and champagnes. Enjoy your favorite drinks for days, as if they were opened just moments ago. [Multipurpose Use]Ideal for multiple types of bottles including wine, champagne, beer, and even culinary bottles like oil and vinegar. These reusable stoppers are perfect for maintaining the integrity and freshness of a wide array of beverages.