To be used with Vacu Vin pump (sold separately).The Vacu Vin Stopper uses a vacuum pump to extract air from an opened bottle of wine and then reseals the bottle with a reusable rubber stopper. By removing excess air from the opened bottle before sealing, it slows down the oxidation process. The result is more glasses per bottle than unsealed bottles (saving you money!).
Dimensions: 1 1/2"L x 1 3/8"W