Bokken
A bokken (木剣, bok(u), 'wood', and ken, '(double-edged) sword') or bokutō (木刀, boku, 'wood', and tō, '(single-edged) sword') is a Japanese wooden sword used for training in kenjutsu. It is usually the size and shape of a katana, but is sometimes shaped like other swords, such as the wakizashi and tantō.