Keep Fresh: the wine bottle stopper is a 2 in 1 saver with integrated pump with stopper. The wine saver minimizes wine oxidation by sucking air out of the bottle. (Just pump the vacuum wine stopper a few times until it is sucked tightly.) The wine bottle is leak-proof to help preserve the flavor of wine and keep the wine taste fresh. Date Display Panel Design: There are numbers and dates on the top of the wine vacuum stopper, which can record the time you last opened. The wine saver is easy to control the flavors of the wine, you will not miss the taste time of the wine. : You can pump the vacuum wine stopper a few times until it is sucked tightly. And turn the dial to point the time you want to record, record the last time you opened. : The wine stopper is made of ABS and Food Grade Silicone, which is high quality and durable. It is BPA , food grade, odorless, reusable and for daily use. Great for home, hotel, club, bar and more. : The wine stopper is made of ABS and Food Grade Silicone, which is high quality and durable. It is BPA , food grade, odorless, reusable and for daily use. It is to the human body, non-toxic and tasteless, is a premium wine accessory. Suitable for most red/white wine bottles (The inner diameter of the mouth of a wine bottle is 18-19mm). Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Dadangjia