This product is an aluminium flush mount design that provides a clean look and an unobstructed view of the road. Made of .060 inch aluminium. Angled at bottom of front and side walls to accommodate sloped bed walls and wheel walls. Offset lid construction allows lid to open fully without back wall interference. Tradesman 60 inch bright aluminium diamond plated flush mount box is designed to provide an ultimate storage solution for the vehicle"s tools along with an unobstructed view of the road. It is angled at the bottom of front and side walls to accommodate slope bed walls and wheel walls. This flush mount box consists of an offset lid that allows lid to open fully without back wall interference. It looks clean and attractive.