Description: 15mm Rail Single Rod Clamp Rig System Mount 1/4" Screw. Mount on camera shoulder rig bracket, cage stabilizer, rail rod support system, etc. Connect any 1/4" screw devices , such as monitors, hot shoes, microphones, etc. CNC aluminum alloy, anodized surface treatment. Loosing and tightening the rods by the adjustable screw. Specification: Material: Metal Size: 48x35x24 mm/1.9x1.4x0.9 inch Package Includes: 1x Rail Rod Clamp 15mm