I purchased 2 of these a few months ago. My shower surface is slick, smooth, clean and dry when placed. They stuck for a couple of months. The both fell in the middle of the night. It was quite a loud noise. Both of the shower caddies broke. Thy were still usable and I placed them again in the shower. Once again within a few days they both crashed. They broke some more. I decided I could not risk them falling for a 3rd time, as I was concerned that they would break my glass shower doors if they fell one more time. I threw them away. I would not recommend this item.