RockerBall Cushion Hitch with Sway Tab (2-5/16" Ball, 2" Shank, 7,500 lbs.): Dampens jerking and jarring from bumps and potholes for smoother towing Reduces shock loads to the vehicle during sudden braking or acceleration Curt 45149 Call 401-949-63RV for lowest price. In store pickup available. We deliver!