Extend the life of your wine for maximum enjoyment Product Information If you are a wine enthusiast or want to keep your wine from going bad, then you need the Metrokane 4 Pack Houdini Wine Bottle Stoppers. These re-usable wine stoppers slow down the oxidation process that occurs after opening a bottle of wine, and allows you to extend the life and enjoyment of your wine. Their happy colors and easy removal tops make them perfect for your own home or as a gift for a friend. Includes are 4 stoppers in a variety of colors, and each fits in bottles of all sizes to create that must-needed air tight seal. Product FeaturesSet of four silicone wine stoppersFit all bottle sizes to create an air-tight sealComes in an assortment of colorsPerfect for any wine enthusiast SpecificationsColor: Red, Black, Tan, GrayQuantity: 4 stoppersCompatibility: Any size bottleLength: 3.5 (Approx.)Material: Silicone