A balisong, otherwise known as a
butterfly knife or a Batangas knife or sometimes
called Bente Nueve, is a folding pocket knife with
two handles counter-rotating around the tang such
that, when closed, the blade is concealed within
grooves in the handles. In the hands of a trained
user, the knife blade can be brought to bear quickly
using one hand. Manipulations, called flipping, are
performed for art or amusement.
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