1,90 Degree AdapterMount your gopro 9 in portrait mode, 90 degree converting design allows more shooting angles. 2,Instagram stories/live streaming Facebook Live streaming and Snapchat stories all display content Natively in portrait mode. 3,Elbow Mount,Ultra-lightweight compact design made of aluminum alloy. 4,VERSATILE ATTACHMENT OPTIONS: the base mount and screw to attach the camera to many different GoPro accessories easily.