FODSLR 11 Inch Articulating Friction Magic Arm & Large Adjustable Super Rod Clamp Pliers Clip with 1/4" and 3/8" Thread for DSLR Camera Rig/ LCD Monitor/ LED Lights/ Flash Light 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.