I got these for my toy American Eskimo who is 41/2 years old but she was dropped by an EX girlfriend when she was only 3 months old.  Her right leg broke in two places so she had to have a steel plate & screws and I thought it would be easier for her to get up on my bed.  So far she will only go up but with time & more treats I think she will try to go down.  Also delivery was soo fast, Wayfair is the BEST place to shop!