Accessories:Front Upper Arm-2PCSStainless Steel Pin-23PCSStainless Steel Flat Head Screw 2.5x8-2PCSStainless Steel Washer 2.5-23PCSManual number:8531Product major function & usage:To support front knuckle arms, increase stability of the vehicle.Major advantages of upgrading to this product:1. Made with a quality light weight high tensile strength aluminum 6061 T6 for greater support and durability.2. Delrin collars are inserted to minimize the gap and strengthen the fitting for a smooth and stable drive.3. Stainless steel balls inserted with stainless steel rings and screws to enhance sturdiness and avoid rustiness.4. The fixing method of the stainless steel ball is changed to our special screw locking design for better security.5. 3D streamline made by CNC machine and anodized with GPM Racing signature scratch resistant vibrant alluring colors.We use a quality light weight high tensile strength aluminum 6061 T6 and is then anodized with scratch resistant colorsWe also have a big selection of multiple colors available now!! Let¡¯s ¡°hop up¡± your vehicles to give them the best looks and performance on the market ¡¦ colors are available in blue, red, grey silver/gun metal, orange, green, black, brown