Purchased on Amazon, assembled, and unused as I don't have a cat yet. It's a new item I bought a few months ago, but I've lost the hammock. I'll include a separately purchased scratching post. I will disassemble it for shipping. I'm selling the entire set as shown in the images. Please refer to the images for the exterior dimensions. The purchased item is a 2-tier cat tree, but it can be expanded to 3 tiers with an additional purchase. The back and bottom tiers have wooden panels, providing stability and preventing scratches on walls. Please let me know if you have any questions.