„Heavy Duty Desk Clamp for 1/2” Microphone Boom Arm, Fits 3.3″ Desktop“
If remove the plastic inserter it can enlarge to 5/8” Hole. Easy to Install: Clip the C-clamp into the table, adjust the fixed base knob to fits your desktop thickness(fits up to 3.3") and tighten it, then insert the microphone stand and tighten the black knob.