Keep Flavor for Two Week: Real vacuum and seal anti-leakage, preserve the wine's flavor for up to 15 days. Easy To : Just insert the stopper into the wine bottle. By pump, the vacuum wine stopper sucks the 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-class wine accessory. Wildly : Wine Saver Vacuum Pump stylishly suitable for wine bottles, great for a household, hotel, , bar and more to . Also is the gift for a wedding, holiday, anniversary, birthday, etc. Specification: How to : Step 1: Insert the vacuum stopper into the mouth of the bottle. Step 2: Pull the piston rod up and (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 airflow sound. Colour:Black + Transparent Material:ABS Size:2.5x1.5x8.5cm Package Contents: 6* Wine stopper Only the above package content, other products are not included. Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.