The Shure-Step II, No. SS2Y-NOB, makes the elevated work on trucks safe by providing mechanics a leg up. The step is rated for 500 lbs and can be stacked for work on larger trucks. Comes 10" tall, weighs 8 lbs and measures 24" by 14". The "Nobby Top" grips the technician's shoes even when oil or coolant has spilled on it. The large replaceable rubber pads on the bottom will keep the unit from sliding on the floor when your tech is standing on it.