The Peterbilt Window Air Deflectors are a practical and beneficial addition to your truck. Made of stainless steel, these deflectors are designed to fit most Peterbilt 359-379, 389 makes and models. Sold in pairs, they effectively redirect airflow, reducing wind noise and turbulence inside the cabin. These window air deflectors not only enhance the overall driving experience but also provide a sleek and stylish look to your truck. Improve your comfort and enjoy a smoother ride with these high-quality deflectors.