Handbook volume: LOS254037This item includes :Front Lower Arm-2pcsStainless metal Round Head Screw 4x25-2pcsProduct major function & usage:To assistance front knuckle fingers, enhance stability of car.1. Created from a good lightweight high tensile power aluminum 6061 T6 for greater support and durability.2. Delrin collars are positioned to reduce the space and strengthen the fitting for a smooth and stable drive.3. Stainless balls put with stainless bands and screws to enhance sturdiness and provide an extensive berth to rustiness.4. The repairing way of the steel ball is changed towards unique screw securing design for better safety.5. 3D improve produced by CNC unit and anodized with GPM rushing signature scratch resistant vibrant alluring colors.