The handle is fixed with a SHAPE Standard ARRI rosette that you install on the camera. The handle is then secured with a ratchet knob screw on the rosette. The remote extension handle includes our patented red push button technology that allows the handle a 360 degrees of rotation. The simplest way to adjust a handle! With a press of your thumb, you can adjust the angle of the handle; this will make your work easier. The length of the arm is 14cm (5 5/8”) and the adjustment length is 5 cm (2”). The Sony handle is fixed on the extension arm with the same mechanism used to install the handle on the camera.