It is a standard size, my neighbor liked it so much, he picked one up also. Between us we have a king cutter 7' rake, a 8' and a 6' land plane, a cultivator, I just rehabbed a cat 0, 5' box blade to fit the full size hitch, and a towing "A" frame with replaceable 2" hitches. It is EXTREMELY easy to back up, flip two levers, hook up and go.
You have to check his hitches to see if are set up for the same catagory hitch. A simple tape measure will tell you. It's simple to widen the base or extend the top if it's for a smaller set up.