These wine corks are great for anyone who loves to store or age their own wine. Whether you're a home winemaker or just someone who wants to keep your wine fresh, these corks are perfect. They fit both 375 mL and 750 mL bottles. The top diameter is 7/8 inches, the length is 1-1/16 inches, and the bottom diameter is 43/64 inches. They're made in Portugal from high - quality natural cork, so you know they'll do a great job of keeping your wine in good condition.