A little disappointed by the support, this one does not where I would have liked to fix it on the dashboard .... I do not know if it's because of the curvature of the dashboard there or because of the granularity of plastic, I had to bring myself to put it somewhere else, there or plastic is right and smoother ... I do not know if this would have been the same with a more expensive medium, but hey I m 'Suffice to anyway.
I tested on the windshield, there by cons it is even difficult to take off the AC holds so much :)