ITEM NAME:4X Saver Bottle Preserver Air Pump Stopper Sealer Plug Tools Wine Vacuum Stopper Descriptio n Description: Great necessity for wine storage Vacuum pump removes air to halt oxidation process Rigid ABS tops with non-toxic environmentally safe thermoplastic rubber Humanized design suitable for most kinds of wine bottle Highly-effective bottle stoppers for wine liquors and spirits Instructions: 1. Plug the vacuum stopper into the bottle and pulling the piston rod up and down. For the bottle of 750 ML, you would better pull 80 times to 120 times. 2. Rotate or Sway to pull out the wine stopper after preservation if you want to drink the wine in another day. Tips:The vacuum stopper can effectively protect the opened wine from deteriorating with the long preservation time of seven days. Specifications: Material: ABS + Silicone Color: Picture Color Type: Vacuum Plug Size: 2.5*1.5*8.5cm Application: 18-22mm Caliber Bottle Preservation: More Than 7 Days Package Included: 4 *Â Wine Vacuum Stoppers Note: 1.Due to the manual measurement and different measurement methods, the actual size could be slightly different. 2.Please be reminded that due to lighting effects and monitor's brightness/contrast settings etc, the color tone of the website's photo and the actual item could be slightly different. High quality buy, happy buyï ¼ 4X Saver Bottle Preserver Air Pump Stopper Sealer Plug Tools Wine Vacuum Stopper.Plug the vacuum stopper into the bottle and pulling the piston rod up and down. Highly-effective bottle stoppers for wine liquors and spirits. Humanized design suitable for most kinds of wine bottle.