Telescopic boom arm from Studiospares. Adjustable between approx 500mm and 900mm. The position of the arm can be slid either way to either extend the arms reach or reduce the reach in a confined area.The angle setting is clamped by a tommy bar, not a plastic knob. This allows the arm to be set such that it will not droop when a heavy microphone is used. Stand mount threaded 3/8". For use with 5/8" threads order the STA5 adaptor code 401090. The microphone thread suits both 3/8" and 5/8" threads as an STA4 adaptor is included. Includes a cable retention clip.