The kunai has many uses, such as being a throwing weapon, agricultural tool, and a knife. Due to the kunai not being sharp, it is possible to grip on all sides. The main types of kunai are the shokunai and the daikunai. However, there's other types of kunai such as the Tobi Kunai. This kunai is known for being called the flying kunai, and it has a long kaginawa at the end of it. There is also the shikoro, which is known for having saw teeth on its sides, allowing for the kunai to cut wood.