The Wingmaster Peterbilt 389 Sleeper Mirror Trim Ring is a practical and durable accessory for your Peterbilt truck. Made of stainless steel, this mirror trim ring is designed to fit most Peterbilt 389 sleepers. With its sleek and stylish design, it adds a touch of elegance to your truck while protecting your mirrors. Easy to install and sold individually, this mirror trim ring is a must-have for any Peterbilt owner looking to enhance the appearance of their truck.