The support consists mainly of three filled with sand or similar bag for weighting, in the middle of a smooth plastic sheet is attached, to which in turn the Navigation Holder (accessory from Navi) is mounted by suction cup. The underside is coated with non-slip plastic and flexible at the points with the bag, so that unevenness of Amaturenbretts be somewhat balanced. The dashboard should anyway but rather just be as inclined and have no shelf troughs. Because the diameter of the Amazon holder is also less for drivers who like to position their Navi left of the steering wheel. Total processing a quality image.
The suction cup of Navihalters from Navi keeps fine. The Amazon holder is quite slippery, but not bomb-proof, ie under normal driving conditions the Navi sitting pretty safe, but must be from and straightened again. In more extreme situations, such as hard braking or evasive maneuvers strong, one of the Amazon holder must however expect that the Navi incl. Also quite extreme the location changes, ie the forces of physics obeying uncontrolled flying through the car interior.
For people who can live with the mentioned Einschränkunken a nice solution, especially since the field of view is really free.