Ninja swords Ninjatō
The ninja sword Ninjatō usually has a blade length between 46 and 61 cm (1.5-2.0 Shaku) with a straight blade, sometimes just a katana was shortened to obtain a Ninjatō. The scabbard had more functionality than just keeping the sword. It could be used as a snorkel or to stow smaller gear in it. Another use was to use the scabbard as a blowpipe for Metsubushi (blend of ash, flour and shavings). This allowed the Ninja blow the blinding powder on the enemy's face and then flee. You could also hide throwing knives in the sheath, a throwing star disguised as a tsuba would also be possible.