The WeatherTech 11+ BMW X3 Rear Side Window Deflectors in Dark Smoke are designed to help reduce wind noise and protect your vehicle from the elements. These deflectors are made from a high-grade acrylic material and feature a dark smoke finish that adds a stylish look to your vehicle. They are easy to install and come with all necessary hardware. These deflectors help reduce wind noise and turbulence while allowing fresh air to circulate through your cabin. They also provide protection from rain, snow, and other debris.