The Peterbilt 379, 386, 388, and 389 5 Inch Door Mounted Mirror Window Chop Top is a high-quality stainless steel product that offers practicality and durability. Sold as a pair, this product includes all necessary hardware and comes with a 1-year warranty. It can be easily installed using 3M tape and fits most Peterbilt 379, 386, 388, and 389 door mounted mirror models, as well as various other Peterbilt 300 series models. With its reliable construction and compatibility, this mirror window chop top is a great addition to enhance your Peterbilt truck's functionality and style.