These are the Optional Aluminum Front and Rear Bumpers for the Traxxas T-Maxx or E-Maxx 4WD Radio Control Monster Truck.              These bumpers attach to the bumper mounts at the front & rear of the chassis.                                                                                  FEATURES: Replace stock plastic bumpers with these brushed aluminum versions.                     Constructed of lightweight 6061 T-6 aluminum.                                                                                                         INCLUDES: One two-piece front bumper                                                              One two-piece rear bumper                                                                                                                             REQUIRES: Fastening each bumper to the bumper mounts (4936) with four 3x12mm                      buttonhead cap screws.