The WeatherTech Deflector - Rear - Drk Smk 81100 is a car accessory designed to deflect wind and rain away from the rear of a vehicle. It is made from durable, dark smoke-colored acrylic material and is custom-fit for specific vehicle models. The deflector attaches easily to the rear window using strong adhesive tape, providing a sleek and seamless appearance. It helps to reduce wind noise and prevents rain from entering the vehicle, allowing for a more comfortable and enjoyable driving experience.