These steps are exactly what we needed...the old steps had a 7" rise, and when you dog only has 3" long legs...!  I will note that the little "no skid" pads they send to keep it from sliding don't stay on, and don't work anyway.  We have wood floors, and got a piece of outdoor runner from the hardware store to put under it, and it works great.  It is very light weight, but no problem for our 40 pound dog.  Great item for the price.