That kit has 2 Dolly converters in it as well. You could use it to couple 2 53 ft trailers together to make a Turnpike special like often seen on the Indiana/Ohio/Pennys turnpike/toll road, Florida Turnpike or Kansas Turnpike. I never pulled them in tandem, I always said I had enough trouble with one, I didn't need 2 or 3.