K + M 21430 Heavy Duty Overhead Boom Microphone StandMobile heavy steel microphone stand for studio or stage. 22. 046 lbs cast metal base, low centre of gravity for high level safety with 3 lockable castor wheels. Rod combination extends to over 2 m with additional locking mechanism. Extendable boom arm with a 6. 613 lbs counterweight and 5 8" connecting thread. Additional mini boom arm with 5 8" and 3 8" connecting thread, fully adjustable regardless of the position of the main boom arm, e. g. to use