Max Capacity: 10,000 lbs GVWR Tongue Weight: 900 lbs 6.5" wide track tires (Gives your trailer dolly better traction on grades, grass, and gravel) Ball Mount (With Parkit360's Stableloc Technology right out of the box your Parkit360 Trailer Dolly connect to almost any trailer). Comes with the 22" trailer connection cable Comes with the 80" trailer connection cable to be able to use your trailer's battery. A cable is also included for use of a battery on the Parkit360 Force Trailer Dolly. Safe "Smart brake controller" built for Electric and surge brakes. (Plug in your trailers wire harness and the Parkit360 Trailer Dolly Will automatically operate your trailer brakes) Battery Not Included. White Battery Box (Built for a series 24, 12-volt deep cycle battery) Battery Charger (Built-in battery tender) The width of the unit is 19" * Battery NOT included.