The Buyers 18" x 18" x 36" Steel Underbody Truck Box is the perfect solution for keeping your tools and equipment safe and secure. This box is constructed from 14-Gauge steel and features a black powder coated finish for superior durability and corrosion resistance. The box is designed to be mounted on either a flat surface or under-bed and features a 3-point latch for added security. The box also features aircraft grade cables and a replaceable gasket sealing system for long life. With its large size and secure design, this box is perfect for keeping your tools and equipment safe and secure. FleetPride is your First Click in Heavy Duty®.