This cat tree fits larger cats. I did use the one wood screw to anchor the tall post to a middle perch for stability. I also have a weighted base on top of the base to keep it from tipping but I’ve done that for all my towers as I have huge cats (18-20 lb strong males). The materials are a lil cheap - I cut extra strings off and vacuumed up carpet pieces, but that said my cats love this tree for its perches and sisal scratching post.