Slides off my shower wall. I have plenty of other things suctioned to my shower that have stayed put for a very long time, but this does not stay put. I tried leaving the suction cups for 48 hours before putting the holder with the shampoo/conditioner bars on the cups and they still seem very weighted by the bars and slide down, eventually dumping the bars on my shower floor. Tried to re-stick them miltiple times in different ways and no luck. I would be grossed out if this dumped out my bars on the floor at a gym or hostel shower or something.