Brilliant. Simple design slim footprint exactly what I was looking for. My cat was already using the stairs as a jungle gym and I had the idea of installing a cat tree in the corner so that she would have somewhere to climb. My stairway is all open and the vertical measurement is a bit over what the tree would usually span. However the seller sent an extra length for free so I could make it work. Its very sturdy especially with the included bracket. Because I was spanning a distance greater than that originally intended I used three bolts rather than one in the bracket and I put two planters with stones on the bottom. Honestly unnecessary but its 1.5 floors to span and my cat is slightly manic Cannot say enough about how great a product it is value for money customer service above and beyond what anyone would expect and my cat loves it. Win.