This 12/24 volt, four wheel (12" tires) trailer dolly can handle a tongue weight of 1,500 pounds and push 60,000 pounds up an incline. Has a stall torque rating of 4550 Pounds. Comes with a Coupler or Arm/Receiver and Electric Brake Travels at 60 feet per minute. Model DC10 uses the same motor but has 5 tires $1,449.00