100% Leak-Proof Seal: Minimize wine oxidation by sucking the air out of the bottle. Just pump the vacuum wine stopper several times until it sucks itself tightly.Real vacuum and 100% seal anti-leakage, preserve the wine's flavor and keep the wine tasting fresh up to 15 days. Safe & Durable:Vacuum wine cork is made from high quality and durable Food-Grade Silicone inside and food-grade ABS outside,a safe to human body, non- toxic. With silicone sealer you would not worry about the leaking when you place your opened wines back.Tips:Avoid horizontal placement to prevent red wine from entering the vacuum pump. Date Makers Design:The wine saver can record the time you last opened the bottle. Simply turn the dial to point the time you want.Easy to control the best tastes for the wine.Please noted it's just a record and it won't count down automatically. Wildly Used: Wine corks reusable suitable for almost all red and white wines, great for a household, hotel, club, bar and more to use.If unluckily cant work with your bottles ,please just contact us for return. Sincere Service:hanmir offers 100% money-back guarantee and timely & considerate customer services, eliminating all your worries about getting this wine stopper. Please get your wine bottle stopper with confidence!