The kama (sometimes referred to as the kai or double kai. Kama made with intentionally dull blades for kata demonstration purposes are referred to as kata kai) is a traditional Filipino and Japanese farming implement similar to a sickle used for reaping crops and also employed as a item. The kama is often included in item training segments of karate, silat and in some Chinese martial arts.
Kamas are now used in a variety of different martial arts, and can be found in a variety of styles. Generally they are used by being grasped in the hand and moved in a circular motion in order to block against other item. They can also be used as an offensive item, utilizing the sharp blade of the Kama against a variety of other item. The Kama is especially good at blocking and countering against a bow staff or a sword, because it is able to trap the item due to the curved blade in order to give the competitor a chance to strike.