This 2.75" long Quick Release NATO Rail from SmallRig attaches to your camera cage or cheese plate to allow securing NATO-compatible accessories such as handles, clamps, and articulating arms. Accessories can slide along the length of the aluminum 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. Two 1/4"-20 mounting screws and an Allen wrench are included for installing the rail.