★This plate is crafted in rigid and lightweight 1.5mm thickness FRP. ★It allows attachment of 9mm, 11mm, 13mm, 17mm and 19mm rollers within the official Mini 4WD regulations on car dimensions. ★Can be employed with the front bumper attached or detached. Compatible Cars MA, VZ, FM-A, AR, Super X and Super XX Chassis cars *Some chassis and bodies may require modification.