Introducing the Peterbilt Unibilt 4 Inch Sleeper Extension Panels, designed for 63/72 Inch Sleepers. Crafted from durable 304 stainless steel, these panels are 4 inches tall and come in pairs. Choose from blank panels or those with 4 round light holes or 4 round 2 inch lights. The lights are available in amber incandescent or amber LED with amber or clear lens options. With a practical 6 inch light spacing, these extension panels enhance visibility and add a touch of style to your truck. Upgrade your sleeper with this reliable and versatile product.