Wall Mount Boom Arm - Wall Mount Microphone Holder for Stand, Vertical Surface Mount and Freely Swiveling Metal Wall Mount Clip Suitable for Saves the Desk Space, Mic Stand Accessories by YOUSHARESWall Mount Boom Arm Install on the wall, solve the limitation that your desk cannot be installed, liberate your desktop, and bring you more space.( Diameter of boom arm insertion hole0. 47in 1. 2cm ), ( Drill Bit Hole diameter: 15 64" 5. 95 mm Stable installation Aluminum alloy material, triangular design of the force point of the support base, the mic wall mount is more firm The concept is different from the mic desk clamp Compared with the boom arm