This is an Exotek Traxxas Slash Aluminum Drag Front Bumper Set, a heavy-duty bumper set made of aluminum alloy, carbon fiber and dense foam. This pack includes a heavy duty alloy and carbon fiber mounting base that secures the extra wide high density foam bumper, the same high impact foam used in touring car racing. Inside the foam bumper are 3 alloy posts for extra secure foam bumper mounting.
This design also allows you to experiment with adding nylon body posts (Traxxas #4214) onto the bumper or perhaps a lexan body lip (splitter) on the under side of the bumper (body posts or splitter not included). This pack is designed to work with most street eliminator bodies.