Add NATO Rail to Your Rig, 0.2" Thin Low-Profile Design, 2" Long, 2 x Safety Pins, Mounts with 2 x 1/4"-20 Screws, Aluminum Construction. Attach NATO accessories such as a monitor extension arm or light to your camera cage or rig with this 2 Low-Profile NATO Rail from SmallRig. This lightweight NATO rail measures only 0.2 thin and 2 long and it attaches to your cage or rig using the two included 1/4-20 screws. Two safety pins on either end of the rail ensure your components are safe and don't slide off the ends.