Keep Flavor for Two Week: Real vacuum and seal anti-leakage, preserve the wine's flavor for up to 15 . Easy To Use: Just insert the stopper into the wine bottle. By pump, the vacuum wine stopper sucks the air out of the bottle until it sucks itself tightly and you feel the resistance. Safe Material: The wine stoppers are made of ABS, it's safe to the human body, non- toxic, high- wine accessory. Wildly Use: Wine Saver Vacuum Pump stylishly suitable for most wine bottles, great for a household, hotel, , bar and more to use. Also is the gift for a wedding, , anniversary, birthday, etc. Specification: How to Use: Step 1: Insert the vacuum stopper into the mouth of the bottle. : Pull the rod up and down (about 80 ~ 120 for a 750ML empty bottle), the more the pumping , the tighter the suction force. Normally, after the lever is released, it will automatically . At this time, the bottle is to the vacuum. Step 3: When re-opening the bottle, remove the stopper by gently moving left and right and open up after an sound. Colour:Black + Transparent Material:ABS Size:2.5x1.5x8.5cm Package Contents: 6* Wine stopper Only the above package content, other are not included. Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.