We did not install these knobs so I can't speak on anything other than the quality that I noticed when I removed the knob from the box. We ordered the black knobs (not oil-rubbed bronze) - they looked nice, but seemed kind of light-duty and very shiny. I was looking for more of a matte black, cast iron feel.  I would have kept these if I didn't find one that I liked much better, as I thought the quality was there and I like the brand.