These are replacement slipper friction pegs for all of the TRAXXAS kits that have a slipper clutch such as the TRX-3, TRX-1, NITRO HAWK, LS-II, etc...                                                                                       FEATURES: Made of RULON                                                                                                                                         INCLUDES: Twelve pegs ***Colors may vary from picture***                                                                                                        SPECS:    length - 3.5mm                                                                       diameter - 3mm                                                                                                                                        COMMENTS: These pegs go in the holes on the side of the spur gear.