The Buyers 18" x 18" x 24" 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 withstand extreme weather conditions and is corrosion resistant. The locking, die cast, compression latch system ensures your cargo is secure and safe. FleetPride is your First Click in Heavy Duty®.