This 495G style duckbill spoiler measures at 4" high. The corners are 45 degrees in angle. Spoiler is made from high quality polyurethane material and will sit flush against the edge of the factory liftgate. It includes self adhesive tape for easy installation. Additional silicone is highly recommended for vehicles at high speed. It can produce quite a bit of down force! Spoiler is UNPAINTED with a flat black finish. Painting will require flex paint to be used. All Spoilers are aftermarket and manufactured in the USA.