Power Caster - The original trailer mover! Maneuver your RV or boat trailer in limited space with this powerful, easy to use and safe electric trailer dolly. Power Caster handles all types of travel trailers (including fifth-wheels), boat trailers, ATV or jet ski trailers using a standard type hitch that has a crank-up jackDesigned for heavy travel trailers/5th Wheel trailers 1,800 lb. tongue capacity 1/2 horsepower electric motor 800 in.-lbs. of torque @ 30 RPM (120 volts, 8.3 amps) Weight 94 lbs. (boxed shipping weight approx. 120 lbs.)