Accessories:Body Post Stabilizer-1PCSStainless Steel Round Head Screw 3x18-2PCSM3x2.5x27.5 King Pin Screw-2PCOriginal Name / Part No:ARA320517Product major functions & usage:Stabilize body postMajor advantages of upgrading to this part/product :Made with a quality light weight high tensile strength aluminum 6061 T6 for greater durability and more stable to use.