1.Keep Wine Fresh Longer -- Minimize wine oxidation by sucking the air out of the bottle. Just pump the vacuum wine stopper several times until it sucks itself tightly. This will help preserve your wine bottles flavor for weeks instead of just days. 2.No Spills Or Leaks -- The vacuum rubber seal fits most wine bottles as well as others with similar characteristics. It preserves better than the original cork and prolongs the wine freshness. 3.Safe Food Grade Material--The wine stoppers built in vacuum value and is made of ABS & Food Grade Silicone, its safe to human body, non- toxic, high-class wine accessory. 4.Widely Used -- Great for a household, hotel, club, bar and more to use. Fit for most wine and champagne bottles. 5.Record The Date Of Opening--Record the Bottle Sealing Date on the Stopper Scale, Please noted it's just a record and it won't count down automatically. Easy to control the tastes for the wine.