Use this articulating arm to mount accessories such as a monitor or lightweight on-camera light. It is a 5.8" long magic arm with two points of articulation and a 1/4"-20 screw on each end. The articulating arm features a single central lever that loosens and tightens the arm. At each end of the arm is a knob with 1/4"-20 threaded stud for mounting 1/4"-20 accessories onto. 1/4"-20 threaded holes are provided for attachments of more accessories as well. The arm can support up to 4.4 lb.