The Peterbilt 388 and 389 2007 to 2013 58 inch to 72 inch Sleeper Extension Panels are a practical and beneficial addition to your truck. Made from quality stainless steel, these extension panels come with all the necessary hardware and a 1-year warranty. Designed to fit most Peterbilt 388 and 389 models from 2007 to 2013, these panels provide added space and comfort to your sleeper. Enhance your truck's functionality with these durable and reliable extension panels.