These Duraflex R - 1 side skirts are perfect for car enthusiasts who want to upgrade the look of their 2006 - 2011 BMW 3 Series E90 4DR. Whether you're cruising around town or hitting the track, these side skirts will give your car a more aggressive and stylish appearance. They are made of FRP material, which is lightweight yet strong. While the exact size and weight aren't given, you can expect them to fit your BMW properly with a professional installation. Ideal for BMW owners who take pride in their vehicle's aesthetics and want to stand out from the crowd.