Powerhouses of metal and steel! Called to battle
to fortify and reinforce the Autobots' front line. The first to
roll in and the last to roll out. A formidable adversary when working
as a team. Extremely smart and tremendously strong. Known for their
ability to orginize and build a towering fortress out of seemingly
worthless junk. Each composed of high-density titanium steel for
maximum resistance against enemy bombardment, Jet boosters under
wheels provide short term flight capabilities.