Visol  Vacustopper Stainless Steel Vacuum Wine Stopper / Saver , Silver Simply plug it on half empty wine bottle, keep pressing the top of the pump until the air inside the bottle is vacuumed out This Vacustopper by Visol does both tasks: Vacuums the air out and works as the bottle stopper. Keeps wine from oxidation Wine can be preserved for up to 2 weeks after pumping air out with this Vacustopper. Dimensions: 1.81" diameter x 3" height. Weight: 2 oz Stainless steel body on the exterior, plastic and silicone interior Works on all standard sized wine bottles