These sway bar links are manufactured to return your stock sway bar back to it's original angle. Maintaining the proper sway bar angle allows the sway bar to properly and reduce body roll as well as eliminate binding under articulation. Zone links are made out of 5/8" solid steel with urethane mounts for increased performance. Sway bar links are sold in pairs and designed for specific applications, but the length and offset is given if you are working with something more custom.