Please order equivalent box #EC30362, which is heavily packaged for parcel shipment Mounts on the inside of the truck bed rails to provide additional storage space Patented RigidCore foam-filled lid to maximize strength and prevent binding Low profile provides better field of vision for enhanced safety 0.058" extra-thick, one-piece aluminum tub holds heavy tools and cargo. Lockable, push-button operation with non-corrosive stainless steel construction. MicroSeal gasket helps seal out moisture, dust and dirt. Lid self-opens to nearly 90 degrees for convenient operation and loading. Universal design can be mounted on the driver or passenger side. Multiple box sizes available for a custom fit on each truck application. Assembled in USA. Limited lifetime .