The StepSon has a 1⁄2 horse power motor and is made of heavy-duty cast aluminum. Uses a variety of 12″ – 15″ pads. Fast, easy to use and able to clean those hard-to-reach places. Great for counter-tops, church pews, shower walls, small landings, small closets, etc. Because it is so easy to handle. Wonderful machine for upholstery.