The tube bumpers are robotically welded to exacting specifications to ensure long life and continued good looks. Black finish bumpers are specially treated with a dense zinc undercoating before being put through a dual powder coat finish. The bright stainless version begins with the highest quality 304 stainless steel that is polished to a mirror finish. Welded one piece design for extreme durability, available in polished, marine grade stainless or black powder coat, no rusting, flaking or peeling - guaranteed on polished stainless Euro grille guard can be used with Tube bumper or factory bumpers.