DEFLECTAIR() - Wind Deflector for BMW Z4 2002-2008 Convertible - Bronze w/ Z4 ROADSTER Engraving Proven efficiency against wind back draft, noise, turbulence and wind buffeting. This deflector improves your top down driving experience all year round and extends your season DOT approved Polycarbonate Hard Coated against Abrasion & UV for years of service Exclusive Rounded edge deflector are cut with precision ensuring a perfect fit and perfect finish 100 % coverage of the roll bar for best result and look, See True Engraving for a better rear view Easy Installation, with no car modification, no tool, no glue. Copyright & PAT. PEND.