This set of steps is great for our needs, just what we were looking for, I wish we had found them sooner. They bolted in with no modifications and made the top step 9" instead of the original 12 1/2" with the 2 step we had. I am going to disassemble the steps when we get home from the trip we're on and cut another stop in the locking cam which will make the top step 7 1/2", the same as the other steps. A very well built, good looking, easy to use unit. Very pleased!