The Magic Arm from K&F is well thought out from front to back.
It is very compact but still very stable and comparatively light. For example, you can easily mount a large monitor here without worry.
Both sides of the arm are generally equipped with a 1/4 inch screw, so that you can screw the arm directly into most cages or even on many stands. If this does not work, a high-quality, rubberized screw clamp is also included with which you can attach the arm to rods between 15 and 55 mm.
It is also very practical that the clamp also has a 3/8 inch thread to which you can then screw on further accessories or use the clamp for other multifunctional purposes without the arm.
It is also very practical that additional fixing holes are embedded on both screw holes. The clamp is therefore also compatible with classic ARRI mounts.

The included mobile phone holder is also minimalistic but very practical. It is also good that there are screw holes on the bottom and back, making you even more flexible when it comes to installation.

But as the real highlight of the arm, I really have to highlight the lock. All you have to do is screw the middle lock tight and the entire arm, including the two heads, is bomb-tight. As a result, you are much faster and more flexible, you have less risk of not having fully tightened a single lock and the heads can therefore also be used much more flexibly. You don't have another lever or screw that can get in the way but do everything through the middle.

Really very practical and well thought-out system.

All in all, there is really nothing to complain about.
The only thing you should note is that the cold-shoe adapter shown in part is not included. Otherwise, for just under 40€, an arm that is extremely practical and will probably last forever.