This product is a compatibility kit designed for Infiniti QX4 (1996-2004) and Pathfinder (1996-2004) vehicles. The kit includes 8 pieces of brand-new, high-quality components. It comprises 4 black and 4 blue rear upper/lower control arm polyurethane bushings. These bushings are essential for the proper functioning of the control arms, contributing to a smooth and controlled ride. Each control arm requires 2 bushings, and this kit is designed to repair a total of 4 control arms on the vehicle. Polyurethane is chosen as the material for the bushings due to its superior quality and durability. These bushings are expected to have a longer lifespan compared to conventional materials, ensuring a lasting performance. The manufacturer, AUTOACER, offers a 5-year warranty on their product, reinforcing their commitment to quality. As a U.S. based company, they stand behind their products and will address any manufacturer-related defects that may arise within the first five years from the date of purchase. In summary, this compatibility kit is designed for specific QX4 and Pathfinder models from 1996 to 2004. It includes 8 high-quality polyurethane bushings (4 black and 4 blue) to repair 4 control arms (2 bushings per arm) on the vehicle. AUTOACER, the manufacturer, provides a 5-year warranty to ensure product quality and customer satisfaction.