BulletProof Hitches Heavy/Extreme Duty Sway Control Ball Mount Model SWAYCONTROLBALLBulletProof Hitches Heavy Extreme Duty Sway Control Ball Mount Model SWAYCONTROLBALL To equip your vehicle with a BulletProof Sway Control System, a mounting point for the sway control bar must be attached to the hitch. The BulletProof Heavy Extreme Duty Sway Control Dual Ball Mount allows the connection between your hitch and your trailer. It is most useful in reducing sway on large, heavy loads. Made from solid steel, it features a 2" & 2 5 16" dual