This is a very good quality and weighing in at 20 pounds,  my spunky, 12 pound cat has a harder time knocking it over than I thought he would have had.  Im very pleased with it. My cat has really been rough on this condo and it has definitely so far, atood the test of time thru him. I recommend this to anyone who has a cat that is very active and destructive! Its been his favorite place to sleep as well!