The Wingmaster Peterbilt Outer Bunk Trim is a practical and durable accessory for your Peterbilt truck. Designed specifically for 63" Flat-Top Sleepers, this stainless steel trim fits most Peterbilt 389 makes and models. It is conveniently placed behind the large sleeper door, adding a sleek and polished look to your truck's exterior. With its easy installation and high-quality construction, this Outer Bunk Trim is a must-have for any Peterbilt owner looking to enhance their truck's appearance.