Troop Trailer Specs:
Ball Size: 2 5/16″
Width: 7ft
Height: Less than 9ft
Length: Unknown
Axles: Tandem (i.e. 2)
Wiring Harness: 7-Way 
There is not a hitch with the trailer but Mr. Thompson has a few to loan out in various drop. A 2-4in drop hitch will work on most vehicles.
There is one spare tire and lug wrench typically with the trailer. Double check for jack.
Trailer is probably 4000lbs loaded and can be pulled by most SUVs and pickups.