Robust Kunai Ninja dagger

A Robust Kunai Ninja dagger is a Japanese tool possibly derived from the masonry trowel. It is a good example of a very basic tool which, in the hands of a martial arts expert, could be used as a multi-functional weapon. It is commonly associated with the ninja, who used it to gouge holes in walls. In addition, kunai could be used for climbing, as either a kind of grappling hook, or a piton. Source: Wikipedia More information...