I think this handrail may be okay, but I am not sure because I'm still trying to install it. The included instructions are abysmal. Concrete wedge anchors are included, but the illustration is for wood screws. The anchor size is not indicated, either, so I had to resort to using a ruler to know which sized bit to buy. Just when I thought I had it figured out, I discovered that neither standard-sized Imperial nor Metric wrenches fit the size of the tightening nuts. I have no idea what size they are. I tried a crescent wrench. The anchor wedges failed to expand properly inside the mounting holes. Fortunately, since they had not opened much at all, I could still pull the hardware out of the holes in the concrete. -- I hope a trip to the hardware store for legitimate anchors solves the problem. As mentioned, the handrail may be okay, but right now I hope that's not simply an over optimistic guess.