I bought these steps because I thought the width of these steps would be the same as the Pet Steps II.  These steps are actually shorter, my small dog has no problem going up, but does have some trouble going down because the steps are not as wide as compared to the Pet Steps II.  I'm disappointed that the steps are not as wide, which is the reason why I bought them.  But overall, they are the best 3-step stairs on the market for what I could find.