Buyers Products Steel Topsider Truck Box mounts on top of the truck bed rails to save valuable storage space inside your truck bed. Keep your equipment or tools accessible and organized with dual doors and an optional snap-in tray. Each truck box is crafted from 16-Gauge steel with recessed 14-Gauge drop doors with reinforced backbones. Its locking, stainless steel T-handle latches help keep your tools safe from weather and theft. The truck box features a protective powder-coated finish and is built for long life with its aircraft grade cable lanyards, stainless steel continuous hinges, and a watertight gasket system.