The twin lever makes it easy to fully insert new corks into wine bottles and is particularly valuable when corking many wine bottles.This bottle corker makes light work of inserting a cork into your wine bottle. Simple insert your cork into corker. Place the nozzle over the mouth of your wine bottle. Pull down the handles to squeeze the cork into the bottle. Continue to push until the cork has been pushed in the bottle. Then gentle raise the handles and remove the nozzle.