Mount your GoPro to the front of your helmet in a headlamp-like position. Capture forward-facing footage, or adjust the extendable arm so the camera is facing back at you for self-portrait videos and photos. The mount can be removed by heating the adhesive bond with a hair dryer then peeling off mount. Mounts to the front of most helmets Capture forward-facing footage or self-portrait photos and videos Can be removed by applying heat to adhesive bond. Internal size: H20.7, W15.4, D3.5cm.