For BMW 3 Series E36, E36 M3, E46 & E46 M3. Type: Coilover Adjustable Spring Lowering Kit. Rear 20-50mm (0.8-2.0") Lowering Range. 2PCS of Coilover Adjustable Spring Lowerings. Application: Rear. Allows for accurate and balanced height setting on both sides during installation for perfect leveling.