This is the Traxxas TRX-4M Utility Trailer w/Hitch and Spacers.
The TRX-4M 1/18 scale utility trailer stows all your scale gear and attaches securely to your truck with the included hitch. Challenge your trailering skills by backing the utility trailer into position using your TRX-4M. Trailer comes fully assembled and ready use.
Includes:
(1) Hitch
(2) Rear Pre-Load Shock Spacers
(2) 2.5x8mm Screws