Handbook volume: LOS254037This item includes :Front Lower Arm-2pcsStainless metal Round Head Screw 4x25-2pcsProduct major function & usage:To help front knuckle hands, enhance security of car.1. Created from an excellent lightweight high tensile energy aluminum 6061 T6 for greater support and durability.2. Delrin collars are put to cut back the room and fortify the fitting for a smooth and stable drive.3. Stainless balls place with stainless bands and screws to improve sturdiness and offer a thorough berth to rustiness.4. The repairing way of the metal ball is changed towards unique screw securing design for better security.5. 3D improve created by CNC product and anodized with GPM rushing signature scratch resistant vibrant alluring colors.