Streamline BTS-S54-BK SS7 Non-Rebuildable Steering Stabilizer 7-compression adjustable from soft to hard designed to absorb thousands of pounds of impact Rebuildable and non-rebuildable options available Aluminum contruction with billet end caps that protect seals from dirt and mud Cast aluminum adjustment knob and body clamp Billet aluminum mountion clamps available in red, blue, black and silver