BEWARE! Once you assemble this cat tree, you can NOT return it.  I bought this as a gift for my son and his 2 cats.  Once he put it  together, he found out it was very flimsy and not very stable for 2 cats to jump on.  At this point he called me and said he wanted to return it.  Upon looking up how to return,we found out that once you assemble it, there is no return.  
 We will have to take the top part off or lean it on a wall to stable it.  
How do you know if you want to return something until you assemble it.  

Cons: Not returnable after assembly. We are stuck with it.