The product includes :Front Kncukle Arm-2PCSC-Hubs-2PCSRear Knuckle Arm-2PCSStainless steel Round Head Screw 3x20-6PCSStainless steel Flat Head Screw 3x6-4PCSStainless steel washer 3m-4PCSOriginal name / role No:AR330519+AR330523+AR3305221. Front c-hubs: assist knuckle hands to turn effectively.2. Front knuckle hands: Assist steering.3. Right back knuckle arms: Stabilize CVD drive shaft and bearing.Major options that come with updating on part/product :1. Created using a great light weight high tensile energy aluminum 6061 T6 for greater durability.2. Delrin collars are positioned to lessen the room and friction and so the steering performance is best.3. Knuckle arms: Delrin collars sit to attenuate the space and fortify the fitting for a smooth and stable drive.4. Exquisite 3D improve produced by CNC item showing contemporary and metallic look.