This control arm kit is designed for the rear axle suspension of various Mercedes-Benz models. It includes one wishbone HA middle left, one wishbone HA middle right, two wishbone HA outside top left, two wishbone HA outside top right, two wishbone HA outside top left, two wishbone HA outside top right, and a set of screws. This kit is compatible with Mercedes-Benz CLS (C219) from 2004-2010, E-Class (W211) from 2002-2009, E-Class T-Model (S211) from 2003-2009, and SL (R230) from 2001-2012. The OEM and part numbers are A2303503606, A2303503506, A2303503106, A2303502806, A2303502706, A2303502006, 2303503606, 2303503506, 2303503106, 2303502806, 2303502706, and 2303502006. It comes with a one-year warranty for any manufacturing defects.