The Roadworks ProStar and LoneStar 4000, 7000, 8000 Window Air Deflectors are a practical and beneficial addition to your vehicle. Sold as a pair, these window air deflectors are designed to fit ProStar and LoneStar 4000, 7000, and 8000 models. They effectively deflect air, reducing wind noise and providing a more comfortable driving experience. These window air deflectors are a must-have accessory for any driver looking to enhance their vehicle's functionality and enjoy a smoother ride.