With this wine bottle stopper, you can remove all the air from the bottle and keeping the wine fresh.
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HOW TO USE
Step1. Insert the stopper fully and firmly into the bottleneck.
Step 2. Press the upper part several times to pump out the air inside the bottle, until the upper part bounds back less than 1 cm.
Step 3. Rotate to record the preserving date. It is recommended to finish the wine in 7-10 days.
Step 4. When re-opening the bottle, remove the stopper by gently moving left and right, then open up after an airflow sound.
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