BEWARE - Not safe unless fixed to a wall
This looks like a magnificent item and my cats loved it until it nearly crushed one of them when the post fell over. The description implies that it can be freestanding. I only have two small Burmese cats but they can topple it simply by jumping from one shelf to another. The sleeping cat on the lower shelf was only saved from being squashed as she fell off because the post fell onto furniture rather than straight to the floor. The base is simply not heavy enough for the height of the post.