The Butterfly Knife "balisong" was commonly used by Filipinos, especially those in the Tagalog region, as self-defense and a pocket utility knife. In the hands of a trained user, the knife blade can be brought out to bear quickly using one hand. Manipulations, called "flipping", are performed for art or amusement. 90mm High Carbon Stainless Blade230mm Overall120mm ClosedMade in Pakistan