This is a replacement set of two Traxxas TRX-4 Sport, Blazer and Bronco Body Posts, intended for use with the TRX-4 1979 Chevrolet Blazer, Mercedes-Benz G 500 4X4², Sport Unassembled Kit, Sport All-Terrain Traxx and the TRX-6 Mercedes-Benz G 63 AMG 6X6 kits. These front and rear posts are an optional part when paired with the TRX-4 Ford Bronco.