These Schumacher Racing Products front wishbones are the factory replacement lower control arms for the Cat PB 4x4 buggy platform. Molded from carbon-filled composite material for added rigidity and durability over standard plastic. Sold as a pair, covering the left and right front lower arms. Features: Carbon-filled composite construction Front lower control arms, left and right Sold as a pair Direct factory replacement for Cat PB 4x4 7/7/26 cs