Install：Damaged air conditioning vents can be easily installed and replaced without special tools; professional installation is recommended! Function：They maintain smooth airflow, reduce buildup, and improve overall ventilation efficiency. Material：This product is crafted using special materials and precision engineering techniques to ensure seamless compatibility with vehicle components and a secure installation. Function: Serves as the core support frame for the air conditioning vents, securing the louvers and airflow control knobs to maintain normal airflow direction adjustment. Reminder: Differentiate between the pure inner support frame and the decorative outer frame; purchase only as needed. Only select the decorative frame if the exterior is damaged; if the frame is cracked, the entire assembly must be replaced., Manufacturer: YSSLYEU1