Sturdy. I have a 15 lb cat that hits the bottom die and is holding up well. He's a little chicken to get on with anything else. A 12 lb cat will jump over everything else, no problem. Both cats use scratching posts. It doesn't move as much as I thought it would on tile and hardwood. I am impressed. It was easy to assemble. You can assemble according to your own imagination. I use a lint roller or vacuum to remove pet hair. I wipe the stain with a damp cloth. Cleans well.
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