This microphone arm can be attached to a robust music stand such as K&M 118/3 in a recording studio, for a reading musician, providing microphone support, or as auxiliary branch for mounting an additional microphone onto a microphone "tree" (such as M-S stereo miking or vocals + guitar). It is of traditionally good K&M build, it helps against crowding the workspace with stands and can also bear heavier microphones.
What this product lacks is extendable tube construction, so the length of the arms could be fine-tuned to possible space requirements and constraints.
Although the price-performance ratio is really good, it would have been very useful if the mounting vice was also engineered for secure attaching to profiles other than tube profiles.