The Buyers 18" x 18" x 48" Diamond Tread Aluminum Underbody Truck Box is the perfect solution for protecting your valuable cargo from the elements and theft. Constructed from .1" thick diamond tread aluminum, this box is built to last and is corrosion resistant for extreme weather resistance. The locking, die cast, compression latch system ensures your cargo is safe and secure, while the aircraft-grade cables and replaceable gasket sealing system provide additional protection. This box is perfect for storing and transporting your cargo. FleetPride is your First Click in Heavy Duty®.