I have a new tiny adult cat and wanted to get her something up high where she could lord over all. I knew with the overlap of the bookshelf in front of the stairs that it was just a matter of time before she’d be on top of the bookcase. For safety, the bookcase is attached to the wall. I got an anti slip rug mat and cut it to fit under the basket to protect the wood and hold the basket in place. She has checked it out and deemed it acceptable. I don’t have a picture of her in it because she has found another high space she loves more, but this one is here for her when she wants a change of view.