"Move a loaded trailer around with ease using the Tow Tuff Heavy Duty Adjustable Height Trailer Dolly. Perfect for heavy trailers up to 1,000 pounds, this trailer dolly has a unique three-wheel design featuring two 16"" flat-free tires and one 10"" swivel caster that helps maneuver utility, boat or cargo trailers. The heavy-duty steel trailer comes in a hammer tone powder-coated finish and the ball height is adjustable from 21"" to 33"". It works with 2"" couplers or larger."