Designed for use on trucks, buses, trailers and other industrial applications. Made of standard malleable iron with a galvanized finish. 5" x 6-1/2" step pad has crosshatch pattern to prevent slipping. Stainless steel spring holds step in up or down position without rattle. Mounting plate is 5-1/8" x 2" with mounting holes 4" apart. See picture 2 for all dimensions.