This is not a complaint, rather a good comment. I don't know how 9" does anything to describe a perch that measures 12" x 22" on the surface? It is much bigger than I expected, but serves the purpose even better in my personal case, as I have an above average sized Tom.
He took to the perch within a couple of days and seems to like it. The unit is quite simple to assemble and the transaction was done simply. A good buy.