Wine Stoppers Set of 2 is a resealable cork in a set of two from the company Vacu Vin. They are used to form a vacuum to preserve the wine's quality when wine bottles are opened. For those who are interested in luxury and quality in life, these resealable corks are for you. They can preserve opened wine bottles for up to 10 days. They can only be used together with the Wine Saver from Vacu vin.