One of the most popular selling stoppers, the #501 Stainless Steel Bottle Stopper seals opened bottles to prolong freshness and provide a unique look. Patented and made in the USA, it is made from food-safe 304 stainless steel and features FDA-compliant O-rings for a tight seal.,One of the most popular selling stoppers, the #501 Stainless Steel Bottle Stopper seals opened