Westins HDX Running Board is made of heavy duty contractor grade steel. The HD style diamond tread provides a textured step area and features Westins signature of quality textured black powder coat finish for added appeal. The HDX Running Boards diamond tread step surface is made of a continuous single sheet of metal which includes a 1 inch splash guard preserves the integrity of the material. Each board includes a useful boot scraper at the front-end of the board for convenient clean-up prior to getting into the vehicle after a dirty job or off-road fun. Westin HDX Running Boards are proudly designed engineered and made in the USA. Backed by a 3 year warranty.