Rotating Car Charger-Holder for iPhone 5 5S with Magnets

While most apps for iPhone are ok vertically, some apps are better used horizontally. Dashboard apps and most navigation apps can be named as examples.
The holder can be rotated into vertical or horizontal position and is held by small neodmium magnets.
I tried to design the item with many different types of springs to achieve the holder to rotate and click in place. But the rotation was never smooth enough for my taste. The neodmium magnets work like a charm.