For Honda Civic Black DNA Shock Absorber with Scaled Coilover (Black Sleeves/Silver Springs) - EJ EM EK High quality mild steel (shocks) construction; High strength cold wound powder-coated springs CNC precision machined aircraft aluminum sleeves Reduce the effect of traveling over rough ground Improved ride quality and handling Coilover Adjustable from 0 to 3 inch ride height (with scale)