Mass Damper for Mini 4WD - Black Dyed Genuine parts are included. Never run on a course. This is dyed, not painted, so the color will not fade easily with normal use, but brass may be visible with deep scratches. *Made by an individual, so perfect precision is not guaranteed. Some fading may occur over time. Please purchase only if you understand this. Currently, AR Chassis Mass Damper Set (Bowl/Cylinder) and MA Chassis Mass Damper Set (Square) are also available as individual items. I also have jigs for MS Flex and other items for sale, so please take a look at my profile. #OROBLAM_LAB