Needed just a little more height to my couch so my Roomba could get under it.. this adds about an inch to the height and Roomba is happy with it. Don't judge that from the photos lol Roomba just started after I snapped them. We put some of those fabric pads on each corner of the print so it would be softer on our floors when moving the couch around but even before doing that these didn't scratch -- just sounded rough.