Constructed with heavy duty 16 gauge steel reinforced by expert craftsman hand TIG welded seams; Commercial Pro HD Steel Side Bin Boxes install along truck bed rail allowing for full view of the road, and convenient storage and access to tools and equipment. The reinforced and insulated high dome lid featuring an ultra-tight weather proof bulb seal and adjustable J-bolt striker mount is bolted to the box body with a heavy duty aluminum piano-style hinge for unequaled strength and durability - even in the coldest weather. Single-handed operation is a breeze with commercial grade self-rising gas shocks and weather -proof quick release, locking push-button latching system. Easy no drill J-hook mounting hardware and rubber mat are included.