Vacuum wine stopper is made of high-quality ABS and silicone material, non-toxic and safe to use. Features unique cap shaped and press-type design, just insert the wine stopper into the bottle mouth and simply pressed the piston several times until the piston is hard to spring up, the air in the bottle is drawn out. The vacuum degree is maintained at a high standard for more effective to preserve the original flavor of wine. It is certainly an indispensable wine and beverage accessory, that is ideally used at restaurants, bars, kitchen and dining.