BMW Z4 Windscreen Deflector 2003 - 2008 Genuine Factory OEM 54700150671 2002-2008 BMW Z4 Reduces air draft and turbulence. The wind deflector is pulled over the roll bars and secured with hooks to the interior trim. When not in use, it can be stowed in a pocket in the luggage compartment. Mounts Over Roll Bars Easy To Store Comes With Its Own Storage Bag