Keep the wine fresh: The wine bottle is a conservation of 2 of which is integrated with the plug and the part of it. The wine protection minimizes wine oxidation by absorbing the air in the bottle. (Pump several times until you just absorb vacuum wine stopped. History Display Panel Design: There are numbers and dates that can record the last time you opened on the wine vacuum stopper. It is easy for the wine protector to control the tastes of the wine, you won't miss the taste time of the wine. Easy to use: You can pump several times until you absorb vacuum wine stopped. And signify the time you want to save by turning the dial, save the last time you opened. : stopped from ABS and Food high quality and durable class silicone. BPA does not contain, food class, odorless, reusable and for daily use. It is great for home, hotel, club, bar and more. : stopped, high -quality and durable ABS and food class silicone. BPA does not contain, food class, odorless, reusable and for daily use. It is for the human body, not toxic and unpleasant, it is a first class wine accessory. It is suitable for most red/white wine bottles (the inner diameter of a wine bottle is 18-19 mm).