This four-pack of food-grade silicone wine stoppers is engineered with a patented interference-fit design that creates an airtight seal, helping keep opened wine fresh for weeks. Designed for everyday wine preservation, these reusable stoppers fit most standard still wine bottles and pair with the automatic wine preservation pump, sold separately, so multiple bottles can be preserved at once. Ideal for wine nights, hosting, and everyday use, each stopper is simple to hand wash and dry thoroughly between uses. As featured on Good Morning America, stoppers offer a reliable way to enjoy red, white, or rose wine long after the bottle has been opened.