Tamiya 95236 Mass Damper Set BlackMass dampers are a critical weapon in your armory, helping keep the machine firmly on the track when negotiating circuits with lane changes, table top sections and the like. The mass dampers weights in this set feature a cool black finish, with matching grey stabilizer balls. Can be installed on the front or rear of your car. Set comes with 2 weights, plus 25mm and 30mm screws (3 each) for attachment.