Bo - Long Staff Deco. No poses included. Try it before you buy! Please Leave Reviews Below And Concerns On My Page. "Osu no Seishin". The Bo is a six-foot long staff, sometimes tapered at either end. It was perhaps developed from a farming tool called a tenbin: a stick placed across the shoulders with baskets or sacks hanging from either end. The bo was also possibly used as the handle to a rake or a shovel. The bo, along with shorter variations such as the jo and hanbo could also have been developed from walking sticks used by travelers, especially monks. The bo is considered the 'king' of the Okinawa weapons, as all others exploit its weaknesses in fighting it, whereas when it is fighting them it is using its strengths against them. The bo is the earliest of all Okinawan weapons (and effectively one of the earliest of all weapons in the form of a basic staff), and is traditionally made from red or white oak.