The wrench is fully constructed out of steel, Features anodized finish for added corrosion resistance, Commonly used on 2 ½" ID coil overs which have an OD of approximately 3 ½", Kit includes wrench for the spring seat adjuster and a wrench for the lock nut, It is compatible with 26, 26A, 26V, 28, 28A, 28V, 50, 51, 60, and 62 Series Shocks.