This tree is going to be unstable for any cat larger than a few pounds. If you've got chubby cats, this might not work for you. However, I got around the problem by fixing the cat tree to the wall. It's now quite stable, even when our 15 pound cat is climbing it.
That stability thing is a nuisance, but we got this cat tree for only $52, including shipping. That's a pretty good value when it comes to cat furniture.Get more detail about Armarkat Cat Tree Model A4201, Beige.
