Elegant piece of design and incredibly effective. Strength of magnet gives confidence that device will stay in place.Surprised at some poor reviews by some. Clearly need to make sure wall surface is sound and can take being pull at when you remove the device as the magnet is very strong. DON'T stick on wall paper or any sort of painted surface that's just plasterboard. Need to stick something smooth to the wall first to stick the magnet to.Only observation I would make is, it would great to be able to buy the wall mounting as an extra, so that the device can be used in different locations. I've had to buy two of these in order to use it in a bathroom and a shower room. I'm now buying another to fit one in a bedroom so the device can be used in the bedroom. I'll then have two mounting rings spare!