The GoPole The Arm GoPro Helmet Extension is a versatile, curved extension mount that attaches to any GoPro or GoPole mount. The Arm allows you to capture more of yourself & your surroundings in the frame. Attach The Arm to your Helmet Mount for extreme 180deg. POV angles. This highly sought after angle is easy to capture using The Arm. Attach The Arm to your Surf Mount or Suction Cup Mount for an extended fixed perspective. Take your shots to the next level with The Arm.