I have 3 cats, 2 of which weigh about 17 lbs each. I was a bit skeptical after reading a review stating that this tree was not very stable. I found that to not be true - if each of the components is tightened securely. I put one of my big boys on the bed on top, and as he made his way to the bottom, the tree supported his weight without wobbling or shaking. VERY satisfied with this product.