Kunai

[citation needed] A Kunai normally had a leaf-shaped wrought blade in lengths ranging from 20 and 30 cm (7.9 and 11.8 in) and a handle with a ring on the pommel for attaching a rope.

Many ninja weapons were adapted from farming tools, not unlike those used by Shaolin monks in China.

Since kunai were cheaply produced farming tools of proper size and weight and could be easily sharpened, they were readily available to be converted into simple weapons.

[citation needed] As with ninjutsu, the exaggeration persistent in ninja myths played a large role in creating the popular culture image of kunai.

In fictional depictions of ninjas, the kunai is commonly portrayed as a steel knife that is used for stabbing or particularly throwing, sometimes confused with the shuriken.