4 Pieces Rubber Vacuum Wine Pump Preserver Stoppers Black Bottle Plug Easily aerates wine with air intake system and an air-blending strainer 1,Designed to be used with Wine Saver Pumps. The pump and stoppers are used together to remove air from your wine bottle to keep wine tasting new for up to a week! 2,Suitable for all Red and White Wines. Universal fit for all wine bottles. 3,Just insert the universal wine saver vacuum stoppers into the bottle and pump using a genuine Vacu Vin Wine Saver Pump .