★Mass dampers are a must on courses with numerous elevation changes. This set includes 6 silver color weights for use on mass dampers; mix and match for the desired setup! ★Also included are 2x25mm and 2x30mm screws, 3mm aluminum spacers, stabilizer balls and more. Compatible Cars FM-A, Super-II, Super X, Super XX, Super TZ-X, VS, MS, AR, MA & VZ Chassis cars *Some bodies may require modification.