Tow Tuff's TMD-45ETD Electric Trailer Dolly is the new, best way to move utility, boat, or cargo trailers. With a capacity of 4500 lbs. and a tongue weight of 750 lbs., this trailer dolly is capable of moving a wide variety of trailer types. Easily maneuverable with the 4-wheel design, this dolly works on gravel, asphalt, and other terrains. The 24 volt, 800W DC electric motor powers Tow Tuff's Electric Dolly and allows for variable speed in forward and reverse up to 1.55 mph. The adjustable ball height, 16" to 23.5" fits a large range of trailers. The dolly features two, 12" tires and two, 8" casters. Constructed of a heavy-duty structure for a long-lasting and dependable product. Tow Tuff's TMD-45ETD contains a 2" ball hitch to work with a 2" coupler. Increased versatility can also be found with the extra 2 5/16" ball hitch. This item includes a LED battery indicator light for added convenience. This dolly measures 50" x 25" x 38" and is perfect for moving utility, boat, cargo trailers, and fish houses.