This mount changes the retention characteristics depending on the temperature. None was able to convince me so far, the result is always the same: cell phone lying on the floor or the cover hangs. At normal temperatures, the relative holding property is so strong that when you try to remove the phone hang the cover remains / interrupted. When the cell phone in rotational movements (right, left), it is remotely possible without large tear-off to remove it. What does not make sense if you every time so has an act. In warm weather (if for example the heating air to the bracket is blowing determined even in direct sunlight - I could not yet test because no sun was ;-)) or below zero you noticed already when attaching the mobile phone that no adhesive force is present and therefore it does not take long and the cell phone is on the ground. The element of surprise while driving is enormous. Not recommended in my opinion.