This item has suction cups so large in diameter that I could not use them in the middle of the side of the tub where the tub rail would have been most useful. I was able to install it at the top of the tub near the faucet were the edge is wider. It sticks well. Looks fine. Test how well it is stuck on before using. I kept it for "just in case" as the placement is not right for regular use.