I have Dachshunds, 1 that went paralyzed, a few years back,and another Dachshund ,they are 13 & 11 The 1st day I got it ,I didnt think they would use it ,but they are smart and listen, I wished I would've had this years ago before my baby had to have surgery, it's his exercise, and I cant believe by 2nd morning they've been using it . I can get a normal bed now,not 1 close to floor so I can pick him up, and its helping my back .love it !!