I have had this corner shower shelf in place for about a year and it has not budged! I actually just ordered a second one because of how well it has held on my tiled shower. My tiles are not shiny or glossy...much more natural and has a bit of texture, so I had my doubts when it first arrived. In my shelf right now, I have at least 3-5 pounds of heavy jars of hair masks, curl creams, and other curly hair products (iykyk...it seemingly multiplies every other shower as you try to get curly hair to work with you instead of against you). It is truly amazing