CURT Rockerball Cushioned Hitch Trailer Balls

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CURT Rockerball Cushioned hitch trailer balls dampen jerking and jarring from bumps and potholes for smoother towing. Featuring ShockDrop technology, each ball has cushioned isolators that reduce shock loads to the vehicle. The Rockerball retrofits onto most existing ball mounts that are at least 3/8 in. thick. Each Rockerball has a durable finish, a grease zerk fitting for easy maintenance, and is tested to SAE J684 specifications. The forged steel construction offers dependable towing power.