This Heavy Duty Trailer Dolly from Tow Tuff is perfect for moving your trailer in and out of storage, into tight spaces, and other areas that are difficult to reach by vehicle. It features two 16" Flat Free tires, and one 10" swivel caster to provide smooth rolling, and easy steering. The 10" caster also prevents the load of the trailer from putting too much weight on you. With a 1000 pound tongue capacity, the 2" ball is adjustable from 21" to 33", allowing you to use this dolly with trailers of varying sizes and hights. It is constructed from solid steel, and has a hammer tone with a powder coat finish.