Blox Racing 21mm Front Sway Bars are made from 55Cr3 Chromium steel. Feature precision forged ends and exclusive polyurethane bushings that prevent squeaks. The bars are durable to high stress and fatigue. They offer stiffness on the side that is compressed the most during hard turns and allow for proper transfer of lateral grip and minimize camber changes through quick and hard cornering. In addition, the sway bars reduce body roll and improve handling.