In addition to it being scaled (to the best of our ability) so it can be held by Thrust, Jetstorm, and Tankor our favorite feature of this part is that we managed to find a company that could 'vacuum metalize' and give this part a similar look to the Transmetal chrome look!  In fact, each and every key has been "sputtered" in actual chrome (not aluminum like TF toys) then given a yellow clear coat.  Chrome, unlike aluminum, gives the part a 'darker metal' look than standard Transmetal parts.  We chose this darker metal look because we thought it added to the mystery and gave a more ancient look to this "Autobot Legend,"  the Key to Vector Sigma!