How to use:
Remove the aluminum foil cover.
Insert the needle into the middle of the bottle and make sure the needle has gone through the entire cork, securing the protective tube pump over the wine.
Press the corkscrew to pump air into the bottle by raising and lowering the corkscrew jacket until the cork slides out of the bottle. (Usually 4 ~ 7 pumps per bottle is suitable.)
Push the plastic sleeve slider to make the needle the corkscrew from afar.