Each mini magic arm in this two-pack can be used to mount an accessory onto your camera rig at almost any angle. Each arm features a 1/4"-20 ball head at both ends with one end incorporating a knurled thumbwheel for attaching your accessory. A single black thumbscrew fixes the position of both ball heads. The mini ball heads swivel up to 360° for flexible positioning. Suitable for a wide range of camera accessories, small lights, or sound gear, the extension arms are constructed from anodized aluminum and nickel-plated iron.