Check this product from Northern Industrial which ships from and sold by Northern Tool & Equipment Northern Industrial Adjustable Trailer Dolly - 600-Lb. Capacity is priced $67.99. Get it now dude, as I don’t know whether this will be available for ready stock on long time. Use the Northern Industrial adjustable trailer dolly to safely move a lightweight trailer over short distances. Ball’s height adjusts to fit your trailer. Capacity (lbs.): 600, Tire Type: 10 x 3 Inch Pneumatic Tires Ball height adjusts from 12 1/2in. to 21 5/8in Allows easy maneuverability of utility, boat, cargo,...