The WeatherTech Deflector - Cmbo - Drk Smk 821013 is a set of two side window deflectors designed to fit onto the front windows of a vehicle. These deflectors are made from a dark smoke-colored acrylic material and are custom molded to fit the specific make and model of the vehicle. They are designed to help keep rain, snow, and wind out of the vehicle while driving with the windows slightly open. The deflectors also help to reduce wind noise and allow for fresh air circulation. They are easy to install and require no drilling or special tools.