The WeatherTech 98-06 BMW 3-Series Front and Rear Side Window Deflectors in Dark Smoke provide protection from the elements while allowing fresh air to circulate throughout the vehicle. The deflectors are made from a durable, dark smoke-tinted acrylic material that is UV and scratch resistant. They are custom-molded to fit the contours of the BMW 3-Series and feature a sleek, aerodynamic design. They help reduce wind noise, reduce heat build-up, and provide a stylish look to the vehicle. They are easy to install and come with all necessary hardware.