Ventilation brackets are probably all problematic because it probably lacks the stability. So even with this. They fluttered and wiggles around on the ventilation, as it is held only by the two upper claws. The lower part is used only as a support. At the top of the mount system, a spring-loaded plastic claw is attached to the Smartfon scratched on the back when inserting and removing. I tried the spring to bend slightly to avoid scratching the back of Smartfons. The spring is broken, so I can not give back the part now. It is also not possible to change the angle of the bracket, resulting depending on the vehicle type to an unacceptable result. A BUY recommendation I therefore can not give.