This 1.6" SmallRig Quick Release NATO Rail fits on your camera cage or to a cheese plate for securing NATO-compatible accessories such as handles, clamps, and articulating arms. Accessories can slide along the length of the rail, and when it's time to pack up, disengage one of the spring-loaded pins at either end of the rail and slide your accessories off. 1/4"-20 mounting screws are included, as is a hex wrench for installing the rail.