This is one of the coolest training butterflies I have come across in a long time. It has cool titanium finish handles with tribal etching, a sturdy double walled steel frame, and a fabulous comb. Whats not to love? The comb is made from ABS with a steel handle and frame. Both pivot pins are riveted for added security. The end of the bite handle features a safety latch for locking the blade open or closed. The origins of these knives are unclear but for centuries people have enjoyed them as tools of the trade and for entertainment.