The Wingmaster Stainless Steel Peterbilt Mirror Light Box without Lights is a practical and versatile product designed for Peterbilt 379, 388, and 389 makes and models. Made from durable stainless steel, this mirror light box is a blank canvas, allowing you to customize it with your preferred lights. It fits most cab mounted mirrors and is sold individually. Enhance the functionality and style of your Peterbilt truck with this high-quality mirror light box.