Replace the standard plastic frame posts on your M-08 M-Chassis with these aluminum posts! The rigidity and stiffness of your M-08 will improve with the use of these posts. Furthermore, the use of these posts will change the responsiveness of the car. A more rigid set-up is desired when track conditions offer high traction, whereas a less rigid set-up is desired for low traction conditions. You can even mix and match the plastic posts with the aluminum posts for in between set up options. Aluminum Frame Posts x4 These are aluminum versions of the plastic kit-standard B8 components. Tamiya blue anodized finish. Compatible with M-08 Concept chassis cars. Please note that all four posts are used on M and L wheelbase cars; S wheelbase cars require only two.