RV TOWING STARTER KIT ; CUSHION HITCH / SWAY CONTROL / BRAKE CONTROLLER Complete kit to maximize comfort and control when towing a small travel trailer Ideal for vehicles less than 5,000 lbs. GVW and trailers 3,500 to 5,000 lbs. GTW Rated for a maximum of 7,500 lbs. GTW and 750 lbs. TW Loaded ball mount with RockerBall cushion hitch ball and welded sway tab RockerBall dampens jerking and jarring for smoother towing Echo brake controller uses Bluetooth® and smartphone to control trailer brakes Echo easily plugs into 7-way RV blade connection for zero-tool setup Sway control unit helps limit lateral trailer movement to reduce sway Anti-rattle helps stop vibration and shank movement Ball mount fits 2" x 2" receiver tube openings and 2-5/16” trailer couplers Tested for safety to meet SAE J684 specifications Limited lifetime warranty (one-year finish, one-year parts)