For hardworking, heavy-duty trucks, the road -- or lack thereof -- is never easy. Whether it's agriculture, mining, construction or military, RETRAC off-road west coast mirrors are built to withstand the hardships of difficult terrain. They are built with shatterproof glass to help ensure long-lasting use in spite of threats from tree branches, loose gravel and other debris. The glass is also a first-surface, electro-chrome glass, meaning it provides a clearer view without obnoxious glare. Each unit installs, using a universal clamp mounting system to attach to any tube 5/8" to 7/8" in diameter. This off-road mirror provides a generous view with E-stamped approved and certified 9" x 17" glass. The glass is semi-convex to widen out the view even further, greatly reducing blind spots. The mirror head is constructed from injection-molded ABS plastic to be durable and completely impervious to rust, and the plastic can be painted to match the look of any vehicle.