Twist2go blinds

[peonies23]

Has anyone got these?
I want to get them for bathroom but means they will need to be tightened against (matt) tiles.

Any experiences please ?

Anyone ?

I have just installed them against UPVC in a tenement window
Surprisingly fine

Oh I've just been looking at those and am going to give them a go! I'm assuming the mechanism is like a baby gate to fit into place? Everything I screw I to the wall seems to fall off so looks like the best idea. I've ordered about 10 samples