Two-piece telescopic boom arm with 0.5"/12.7mm thread and adjustable heavy counterweight that was designed for use with König & Meyer models 20811 and 21411. It is made of steel and adjustable in length from 1070 to 1870 mm, and features a T-bar locking screw and a 3/8”-9.52mm threaded connector for microphone mounting. Weight: 5.32 kg. Black colour.