The package is supposed to contain 15 mounting kits. Mine showed up with 15 screws, 13 metal spacers, and 17 plastic sleeves. So they get the total number of parts right, but only 13 usable sets. Of all the things to skimp on too, the spacers are the ones I cannot pick up at my local hardware store.I also noticed the bag had the wrong label on it, describing how to attach the enclosed hooks on a pegboard.I was able to make do as I really only needed 12 spacers and installing them is fairly self-explanatory.Once installed, I noticed that some of my pegs would scrape the wall behind. There is probably only 1 mm of interference, but enough to leave a nice gouge here and there.If they included the pieces they said they would and had made the spacers another mm deeper, I would have been pretty satisfied.