Zyliss Bottle Stoppers are a great way to keep a variety of beverages fresh. Toss out those old corks and switch to this modern solution of keeping your favorite bottles sealed and fresh. Natural corks can often taint wine and on occasion, introduce fungus. Zyliss Bottle Stoppers feature a generous design that's capable of fitting a variety of bottle sizes. The airtight seal has an easy-lock lever for quick opening and closing. Zyliss Bottle Stoppers use a leak-proof rubber seal to keep contents secure.