Always a cat's favorite I've had several cats since I bought this years ago and all of them have loved this. Then don't play with it every day but all I have to do is swipe that ball and it stirs their interest in it all over again. So happy to finally find the replacement inserts on Amazon! I've been without one for a while now and I'm very eager to put that back in for a scratching spot.  Put a little catnip under the cardboard and it's a fiesta.  It stays under my coffee table and it's unobtrusive.