The HB-1 is an articulated arm which is of very substantial steel channel structure and balanced by four external springs. Capable of supporting microphones up to 2.5 lbs, the HB-1 has a reach of 40".

The HB-1 is shipped with a brass lined 'C' clamp mount that accepts up to a 1.5" thick table. The HB-1 will fit all of the brass lined Heil mounting accessories:
DT-1 Flush Mount that mounts through a 1.5" hole in the desk top
FL-2 Flange Mount secures to any flat surface
WM-1 Wall Mount
RS-1 12" Riser Mount
The HB-1 Boom accepts all of the standard 5/8" -27 threaded microphone hardware.

The threaded chrome stem can be secured into its needed position by tightening the thumb screw.