Kobudo is an ancient Okinawan martial art using weapons. In Okinawa, it is said that Okinawan Karate and Kobudo are like two wheels on a wheel, and that one can only deepen and improve one's skills by learning both Karate and Kobudo, not one or the other. Typical weapons include the bo, sai, nunchaku, tonfa, tekko, kama, tinbei, and eiku, and each weapon has its own kata and techniques (waza).