TARION Articulating 11" Magic Arm for LED Light LCD Monitor DLSR Camera with Professional Rod Clamp Holder This magic arm is with precise design, allows universal mounting options. Supplies 1/4" screw adapters to fit camera, lamp holder and other accessories. Articulating design, with one knob locks all position. Superior quality, precise and durable design. Suitable for mounting your HD monitor, led video lights to DSLR RIG ROD Rail system, rail support.