The Peterbilt Window Shade is a practical and convenient accessory for trucks with rectangular convex mirrors over the passenger door. It is sold as a pair and can be easily installed using 3M tape. This window shade is specifically designed for most 2012/2013/2014/2015 Peterbilt 386/388/389 makes and models. Manufactured by Trux, this product offers a sleek and functional solution to protect against sun glare while driving. Please note that it cannot be used on trucks with door-mounted mirrors.