I am very disappointed in this produce.  The folding petstep came and the box was not damaged.  When I took the petstep out of the box, the spting that holds the two sides, was stretched to the limit.  I read the training instructions and laid the petstep out on the floor, for my Newfoundlands dogs and I cut the heal of my hand on the ragged platform.  The petset was broken on the ramp portion and the broken edge was staggered.  This is really poor quality control!  Sometimes I wonder if pet companies have our animals best interest.