Madmeg my understanding is that suction grab rails will only stick to shiny tiled surfaces. I found out because I tried one on my 'mat' surface shower tiles and it would not stick. Later I came across the information re shiny surfaces only.
Since reading this thread I've bought the non slip shower sliders recommended on here. What a difference they have made to my safety when using the shower. They're completely non slip.
I thought I was going to have to change the shower tray for a non slip version. No longer necessary thanks to this thread. 
What medicine do you remember always having in your childhood medicine cabinet?
The Greens say they want Israel to be 'replaced' with one state.
Strictly 2026- Remembering Sparklefizz.
