This technique includes :ront Lower Arm-2PCSRear Lower Arm-2PCSStainless Steel Round Head Screw 3x16-4PCSOriginal name / Part No:AR330520+AR330521Support the framework and support the front&rear knuckleMajor benefits of updating because of this part/product :1. Aluminum 6061 T6 material designed for better power, limit and much more elastic. The delrin collars are put toward hands to minimize the play and strengthen the fitting.2.Compare towards initial design, the merchandise has a fashionable hollow design.3. Numerous positioning holes for users to modify the angle connected with dampers.