This product is a suspension knuckle designed for use in Volkswagen and Audi vehicles. The part number is 1K0505435Q. It is a genuine OEM (original equipment manufacturer) part, meaning it is made by the same company that produces parts for the original vehicle. This suspension knuckle is a critical component of the suspension system, connecting the wheel hub and the control arms. It is made with high-quality materials and is designed to meet the specifications and standards of Volkswagen and Audi.