KisKis Premium Air Vacuum Pump Wine Bottle stopper (All In One - stopper, vacuum, pump) (Black) Keep your wine fresh and preserve the flavor up to 15 days by extracting the air (slowing down oxidation) from the bottle through Vacuum pump wine stopper.No extra tool required. Ergonomic design for ease of use with special fingered concave centered design for easy pumping. 100% food grade material. Safe and reusable. Double ring decorative style and exclusive air vacuum pump technology. The Prefect Gift. Classy and unique look.