Top of rear window spoiler, BMW 5 series 520i/523i/528i/530i/535i/540i/550i/M5 4 door sedan, 2010 on. This spoiler adds a distinctive style to the rear of your BMW. It is designed to fit directly in the rubber window seal. Clearance is provided for OE 3 rd brake light so it remains functional. Manufactured in ABS so easy to paint. Installs easily with high strength double sided tape.