Industrial grade Quality valve spring installer : Made of high quality alloy metal ,lightweight and sturdy. good for home or professional use Professional valve spring installer and remover --This tool is used for removing & installing the pressure spring for the intermediate levers on BMW N13, N20, N26, N51, N52, N53, N54, N55 engines Precise matching valve spring Compressor of BMW : It can ensure quick, easy and safe handling of these high-force springs,be equal to BMW original engines repair Tool Fit for BMW only： 2011 - 2013 BMW - 135i/2013 - 2013 BMW - 135is 2006 - 2006 BMW - 325i/2006 - 2006 BMW - 325xi/2006 - 2011 BMW - 330i/2006 - 2011 BMW - 330xi packaging include : 1X valve torsion spring disassembly tool packed with a box. Good for storage.