These look so incredibly classy and contemporary! We loved the price as they compared to other very expensive high end glass knobs we had been eyeing. The only thing to keep in mind is to make sure the screw is all the way extended before placing the curtain rod in place. The finish of the rods do scratch easily, we saw this quickly and luckily only created a small scratch which was easy to hide. The hardware was easy to install and it took only 15 minutes to complete.