GoPro Lateral Screw to 17mm Ball Adapter
The AP17MM-GP is a versatile adapter that converts any GoPro mount or pedestal into a 17mm ball mount or pedestal that can hold smartphones, tablets, or Garmin GPS. (Holders and devices sold separately.) Just insert AP17MM-GP into the GoPro lateral screw pattern and tighten with the lateral screw. Then, you’re ready to mount any 17mm ball pattern holder (for a smartphone or tablet) or Garmin GPS (which is compatible with the 17mm ball mounting pattern).