I ordered 2 9" bars as well as the 18". I have not yet mounted them because I want to paint the bathroom first. However, I like the looks of the towel bars and believe that they will make an excellent addition to my bath. I watched the video about installation which showed the use of an installation guide but that is not part of the order. I don't know if it is something separate of comes with some towel bars but not these. It would have been very handy to have.