This stainless steel kit is designed for Peterbilt 579 Long Hood models with 72-inch sleepers. It includes cab panels, sleeper panels with extensions, and 18 slotted light cutouts. The kit is available with or without a block heater hole and is 2 1/2 inches tall. It is easy to install using the supplied hardware. This practical and durable kit enhances the appearance of your truck while providing functionality and convenience.