Ninja Sword

The ninjatō (忍者刀), ninjaken (忍者剣), or shinobigatana (忍刀) ,are allegedly the preferred weapon that the Shinobi of feudal Japan carried. The ninjatō is typically depicted as being a short sword, often portrayed as having a straight blade (similar to that of a shikomizue) with a square guard. Usually of a length "less than 60 cm", the rest of the sword is comparatively "thick, heavy and straight".