"This is really nice, inexpensive, easy to take in the car. And it works great for my little Lhassa-Poo (22 pounds). But my cocker mutt (38 pounds), for whom I actually bought it because he's 16 and heavier and hairier than I like to lift, doesn't like it much. The steps are too small for him going up, and on the way down, he just gets on the top step and jumps to the ground from there, defeating the purpose for which I bought it (trying to make it easier for him to get in and out of the car). I'll keep working with him to see if he can get the hang of it, but it's awkward for him to take such little steps."