Preserve the flavor of your favorite red wine or fresh white wine for later with the OXO Steel Expanding Wine Stoppers. Simply press down on the flat top with stainless steel accent, and the silicone seal expands to fit your bottle perfectly. The seal keeps air away from the wine while preventing leaks and drips. The stopper is designed to fit your bottle precisely and can be stored in refrigerator doors or even lying down on a shelf.