The Eibach Platinum Barrel Spring optimizes suspension travel with a 500 lbs/in rate. Measuring 10.00 inches long with a 2.50-inch inner diameter and 3.76-inch block height, this single high-tensile steel spring is designed for universal coilover systems. Ideal for off-road or race setups, it ensures smooth response. Professional installation and tuning are required. Powder-coated for durability, it includes a limited lifetime manufacturer warranty.