Ok my cat is a very picky cat I mean real picky she is 2yrs old and I have bought her so many toys and things to play on yet she never seems to be interested in any until she got this for Christmas. She loves this she hangs off it and climbs on it and she isn't real heavy but I'd say a good 8 to 10lbs and the thing holds her great. I read that someone said the wings are floppy the best way to fix this is use a electric screw driver and drill it in a little at a time we noticed that upfront before ever letting our cat in and that fixes the issue completely. Also comes with everything needed even its own screw driver how cool is that. I can say though don't get ahead of yourself when putting together their are steps and we tried to skip them but their there for a reason cause if you don't put it together in order you will have to take it down and put it up again... all in our family and our kitty is so happy with this item.