You get what you pay for!  The inexpensive price was the draw for this cat tree, however, it is of poor quality...the posts are not the same length, so it leans to one side and the posts also don't stay fully tightened, so it wobbles.  My cats have turned it over repeatedly due to its unsteady nature.  It works for what it is needed for, just be careful when purchasing if you have small children.  They could easily pull it down on top of them.