Accessories:C-Hubs-2PCSFront Knuckle Arm-2PCSRear Knuckle Arm-2PCSFront Lower Arm-2PCSRear Lower Arm-2PCSStainless Steel Round Head Screws 3x12-4PCSPOM Collar-4PCSOriginal Name / Part No:8337+8332+8352+8333Product major functions & usage:1.To connect the front arms and knuckle arm in unison with the entire steering assembly2.Work with steering tie rods to improve steering3.Support the chassis and stabilize the dampers and C hubs4.Stabilize rear CVD shaft, rear arms and rear upper tie rod so the car could stay good balance5.Support the chassis and stabilize the dampers andMajor advantages of upgrading to this part/product :1. Aluminum 6061 T6 is light material with high tensile strength for long-lasting durability during extreme RC action. The products are also anodized in our singature scratch resistant vibrant alluring colors.2. Delrin collars are designed and hand installed to eliminate the gap, friction with the friction causing parts, so that the handling performance is top rated and in harmony with the rest of the vehicle.3.F+R knuckle arms with multiple positioning holes designed to adjust the angles of the dampers that suits different play modes.