These side skirts are perfect for BMW enthusiasts who own a 2006 - 2011 3 Series E90 4DR and want to enhance the look of their car. Whether you're driving on the city streets or showing off at a car meet, these side skirts will make your BMW stand out. The set comes as a 2 - piece unit, made of FRP material which is both lightweight and strong. While specific dimensions aren't mentioned, they are designed to fit your BMW precisely for a seamless look.