I have become aware of the holder, because I have a bike navigation app downloaded that precisely offers this support. Since I (which my friend and mine, both different size) like to use the phone as a bicycle navigation, I wanted to try the mount times since the corresponding video was promising. The video has not promised too much. Although the first 'assembly' of mobile phones is somewhat tricky in the bracket, but at the second assembly has the low rotation. The holder will keep the phone perfectly in position, not twisted and has been tested by me both on the road and in the forest, with an excellent result, in my view. Not only did I have attached different mobile phones (Sony Xperia Z, Samsung Galaxy S2) but yesterday a Falk Ibex 32, which it is very thick compared to the previously gennanten phones. There were no problems. I can give the product both for value for money as well as functionality nothing but 5 star.