Mini 4WD Mass Damper - Black Dyed This product contains genuine parts. The item has not been run on a course. Since it is dyed and not painted, the color will not fade easily under normal use, but brass may be visible if there are deep scratches. *Please note that this is a handmade item, and 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