I didn't realize how big this bot was when I first ordered it. I don't really know scales. It worked out fine though as Trailbreaker is the taller of the first g1 Autobots next to Prime. It was fun doing him. Sculpted head, missle launcher base and force field generator with apoxie, styrene and cardbord. Those are some of the original toys missles and a Sideswipe launcher. The light is a LED keychain from Wal Mart. I also added windows using cut out sections from blue tupperware lids.