13 inch, 45 pounds. I got it for pre scrubbing so I wouldn't have to haul the defender in. Also should be use full for smaller pad cap jobs (if not to dirty.) The extra one I have is in real nice shape, but the handle adjustment is a pain, needs fixing. I got $300 invested in these machines , got em for $150 and spent about $150 in gas to go pick them up. I would let one go to a freind for half of what I spent ($150). Problem is it would cost alot to ship.