In Japan, people who did not belong to the Samurai were forbidden to carry weapons at that time. However, since they were often attacked on their travels, they had to develop and master an inconspicuous weapon that was effective. So from now on they carried the Bo as a walking stick on their travels, which could be used as a weapon in combat situations immediately.
Traditionally we use the Bö rod with a length of 183cm, but you can also get the Bö with a length of 127cm and 152cm. The diameter of 2,5cm is optimal to have a perfect grip and to master the different techniques.