OC White 11440-13-B - Cast Iron Table Edge Clamp for ProBoom Ultima Gen2 ULP Mic ArmsThe ProBoom Ultima Gen2 Cast Iron Table Edge Clamp Assembly is for All Ultra Low Profile Mic Arms is part of the modular mic and monitor support system. *Not Compatible with First Generation of Ultima Products* Features: Cast Iron Table Edge Clamp Assembly for All Ultima Gen2 Ultra Low Profile Mic Arms 13mm hole Will mount to surfaces between 1 2. 5 thick Comes in Black 5 Year Mechanical Warranty