RockerBall Starter Kit - 3" DropThe CURT RockerBall™ cushion hitch provides improved comfort and enhanced control while towing, featuring our unique ShockDrop™ technology. An integrated cushion isolator allows the hitch ball to turn the standard ball mount into a cushion hitch with anti-rattle capabilities.The RockerBall™ ball mount kit is a shock-absorbing hitch accessory that dynamically reduces jerking and jarring while towing. As your trailer passes over bumps and potholes, it produces all kinds of vibrations, jolting, chucking, and noise. With a traditional metal-on-metal connection, these annoyances are directly transferred to your tow vehicle, making your ride noisy and uncomfortable and taking a toll on your towing system.The RockerBall™ completely changes your towing experience by absorbing the erratic movement and rattling of your trailer at the coupling point. This provides a smoother ride and increased control over the vehicle and trailer. It also reduces the amount of stress placed on your vehicle, receiver hitch, brakes, and suspension system.The RockerBall™ is also extremely low-maintenance compared to other torsion hitch and cushion hitch options. It has no airbags or bearings to service. Simply apply grease to the integrated zerk fitting as needed for continuous lubrication and smooth operation.This RockerBall™ hitch kit comes with a standard ball mount with a 3" drop and a standard 2" shank to fit most class 3, class 4, and class 5 receiver hitches. It also includes an anti-rattle shim kit for maximum vibration resistance.The CURT RockerBall™ hitch ball is constructed from forged steel for exceptional strength. The base and ball mount are covered in a durable powder coat finish, and the ball itself has a chrome plating for long-lasting weather resistance.Features:Dynamic trailer ball featuring ShockDrop technologyDampen jerking and jarring from bumps and potholes for smoother towingCushioned isolators reduce rattling and vibration for a more comfortable rideReduces shock loads to the vehicle during sudden braking or accelerationMinimizes stress on tow vehicle's suspension and brakes for extended longevityFits trailer hitches with a 2" x 2" receiver tube openingVirtually maintenance-free with no airbag or bearings to serviceGrease zerk fittings provide easy lubrication3" drop for precise trailer levelingForged steel ball for dependable towing powerDurable black powder coat finish (chrome plating on the ball)Standard trailer ball diameter fits 2" couplersRated for 7,500 lbs. GTW and 750 lbs. TWTested for safety to meet SAE J684 specificationsSpecifications:Includes: 2" RockerBall #40047, ball mount #45050 and anti-rattle #22321Ball Capacity: 7,500 lbsBall Diameter: 2 in.Drop: 3 in.Finish: Black powder coatHub Warehouse: D01Material: Forged steelReceiver Tube Size: 2 in.Shank Diameter: 2 in.Shank Length: 2 in.Tongue Weight: 750 lb.Warranty: Limited lifetime warranty (one-year finish, one-year parts)