The ARIES TrailChaser Jeep bumper is unlike any other bumper for the Jeep Wrangler JK because it features a modular design. Each piece can be attached or swapped out as desired, giving you complete freedom of customization. This particular piece includes the rear center section only and is intended to accept side extensions (sold separately). It is constructed from high-strength carbon steel and has a unique, textured black powder coat finish for maximum rust resistance. It is also available in powder-coated aluminum.