The Buyers 18" x 18" x 18" Diamond Tread Aluminum Underbody Truck Box is the perfect solution for keeping your valuable items safe and secure. Constructed from durable aluminum, this box is built to last and can be mounted on either a flat surface or under-bed. It features aircraft-grade cables and a replaceable gasket sealing system to protect against weather and theft. The locking, die cast, compression latch system ensures your items are safe and secure. FleetPride is your First Click in Heavy Duty®.