OC White 11440-1B - Heavy Duty Table Clamp for ProBoom Mic Arms (Black)Rugged and reliable, O. C. Whites Cast Iron Table Edge Clamp Assembly will mount to surfaces between 1" 2. 5" thick. It is designed as a mounting option for all ProBoom Elite and Junior Mic Booms, and it can also be used with O. C. White magnifiers, LED task lights, and exhaust fans. Features: Cast Iron Table Edge Clamp Assembly Works with all ProBoom Elite and Junior Mic Booms Also with many other O. C. White products, including our magnifiers, LED