Kyokushin Steel Kama Set. Great for any dojo or temple decoration. Thanks to my friend smilewithtears for making the Wall Decoration "Kama" mesh. Arigatou Gozaimasu! No poses. Try it before you buy! Please Leave Reviews Below And Concerns On My Page. "Osu no Seishin". The kama sometimes referred to as the kai or double kai. Kama that are made with intentionally dull blades are for kata demonstration purposes being referred to as kata kai, is a traditional Filipino and Japanese farming implement similar to a small scythe used for reaping crops and also employed as a weapon. The kama is often included in weapon training segments of karate, silat and in some Chinese martial arts.