CURT RockerBall 2-5/16-Inch Cushion Hitch Gooseneck Ball, 30,000 lbs Model 60654CURT RockerBall 2 5 16 Inch Cushion Hitch Gooseneck Ball, 30,000 lbs Model 60654 If your gooseneck hitch could use an upgraded ball that improves your ride and minimizes stress on your vehicle, the RockerBall is exactly what you need! The CURT RockerBall cushion hitch gooseneck ball features a cutting edge structure combined with unique ShockDrop technology to provide a smoother, more comfortable towing experience without having to purchase or replace