The Peterbilt 388 389 410 4 Post 3 Inch Bars with Collision Avoidance System Bracket and Quick Latch is a practical and reliable product made from aluminum. Designed to fit most Peterbilt 388 389 4 Post models from 2008 and newer, this product offers enhanced safety and convenience. With its collision avoidance system bracket and quick latch, it provides peace of mind on the road. Each bar is sold individually, ensuring a perfect fit for your specific needs. Upgrade your Peterbilt truck with this high-quality accessory for improved functionality and safety.