I bought one to put outside in the enclosed patio to make it easier for my cat to jump up to their window "cat" door. It was perfect so then I bought another to put inside the house leading to the window cat door. I have three cats and now they can rest on the stairs while waiting for their turn to go through the window/door. It works perfectly for them and looks good too. It would be a good buy for anyone with indoor cats who just want to look out the window. Especially if you don't have a large window seal. My cats are older, but I can see kittens going crazy over it. I put a bit of catnip on it the first day I got it. It's very study. The cats and I love it.