Handbook amount: LOS254037This item includes :Front Lower Arm-2pcsStainless metal Round Head Screw 4x25-2pcsProduct major function & usage:To help front knuckle arms, increase stability of car.1. Made out of an excellent lightweight high tensile strength aluminum 6061 T6 for greater help and durability.2. Delrin collars are placed to minimize the gap and bolster the fitting for a smooth and stable drive.3. Stainless balls placed with stainless bands and screws to boost sturdiness and give a wide berth to rustiness.4. The fixing way of the steel ball is changed towards unique screw locking design for better safety.5. 3D improve produced by CNC unit and anodized with GPM rushing signature scratch resistant vibrant alluring colors.