The URO Parts Coil Spring Shim - 014913 is a small, thin metal disc designed to be placed between a vehicle's coil spring and the spring seat. It is used to adjust the height and stiffness of the suspension, allowing for a more customized and comfortable ride. The shim is made of high-quality materials and is precision-engineered to ensure a perfect fit and long-lasting durability. It is a reliable and cost-effective solution for correcting suspension issues and improving overall driving performance.