If you are not good at installation, contact you to find professional installation, exchange part number: 56028196AD High quality: Affordable price, enjoyable, designed with high-quality materials to improve reliability and durability It is recommended to search for relevant installation videos on the Internet and always wear goggles. Start with installation tools. If you are not good at installing by yourself, it is recommended to find a professional car store to install them. Before purchasing, please confirm that the product image or OE number is suitable for your ride. Our products are stored in warehouses and may collide during handling or transportation (most products require lubrication, and having lubricants is normal). But please rest assured, this will not affect usage. If you have certain requirements for appearance, please contact us and we can exchange it for you. Thank you for your understanding!, Manufacturer: WANGXINING