The K&F Concept MS-48 Magic Arm makes a very solid impression and is ideal for smaller devices such as smartphones, action cams or compact cameras. Thanks to the two ball heads, the position can be adjusted very flexibly, and the central locking screw allows you to quickly fix the arm. This is very practical for video productions with a mobile phone or light equipment, as you can change the viewing angle in seconds. In my test, the arm held an iPhone and a small system camera stable without any problems. It works reliably even with lightweight LED lights or microphones. However, it is not designed for a larger and heavier SLR camera such as the Nikon D7200 — the weight is too heavy here so that the clamp does not hold enough. The workmanship is good overall: metal parts look sturdy, the screws grip cleanly and can be operated without effort. The 1/4" screw can also be used universally and fits many common devices and accessories. Conclusion: A practical little helper for anyone who wants to flexibly position accessories such as smartphones, lightweight cameras or LED lights. Robust, easy to adjust and reliable — as long as you stay within the intended weight range. Pros & Cons: ✔️ Flexible thanks to 360° ball heads ✔️ Keeps smartphones and small cameras securely ✔️ Good workmanship and sturdy screws ✔️ Universal 1/4" screw ❌ Not suitable for heavy SLR cameras