The reviews, to which the adhesive is to hold not good, I can not confirm. I have the towel clamp ordered reluctantly, because we wanted to install it on very smooth bathroom tiles. I then ventured in spite of the negative comments and was not disappointed. The clamp holds bombproof on extremely smooth surfaces! I usually write reviews rarely, but here I had to defend the product necessarily.
Otherwise: Great design, high quality material, fast delivery! A definite recommendation!