The Wingmaster Stainless Steel Peterbilt Mirror Light Boxes are a practical and reliable solution for enhancing the visibility and safety of your Peterbilt truck. Designed specifically for the 379, 388, and 389 models, these cab-mounted mirrors feature 2 slotted light boxes with LED lights. Crafted from durable stainless steel, these mirror light boxes are built to withstand the rigors of the road. Improve your driving experience with increased visibility and ensure the safety of yourself and others on the road with these high-quality mirror light boxes.