Competition Bo Staffs. The Bo is 1" diameter at center and tapers to 5/8" at ends. It is light weight and strong. Your choice of size from 42" to 72" long + or - 1/4". Click on Film chart for color selection information. All Bo-Staffs are made to order and considered custom. Custom weapons are non-returnable, all products are guaranteed against defects in materials and workmanship. Grip is available for an extra charge, see grip page for colors.