This is a scratching post for small cats. It can be used as a freestanding or fixed (screwed) type. It's a set that comes unassembled, including the main unit, screws, screwdriver, and instruction manual. It's a new, unused item. ※The image shows the same product already in use at my home. When freestanding, the scratching post may slide around if used by a large cat. The screwed-in type seems to be more convenient. Also, it seems you can attach it to a cage by sandwiching the board. ★Thank you. #★Thank you.