The Trailer Valet Jack / Dolly sets up in seconds to quickly take the hassle out of maneuvering your trailer. Simply lift the steering/brake handle with one hand, and crank with your other hand. Positraction allows ease of handling and maximum traction. Integrated automatic brake kicks in when trailer tongue is bearing the weight and handle is released. High and low range drive. Will move trailers up to 5,000 lbs. 500-lb. tongue weight.