 Yamanni ryu

Yamanni-ryū (山根流) (also Yamanni-Chinen-ryū and Yamane Ryu) is a form of Okinawan kobudō whose main weapon is the bo, a non-tapered, cylindrical staff.The smaller buki, such as sai, tunfa (or tonfa), nunchaku, and kama (weapon) are studied as secondary weapons.