J-hook buckle is used with the camera mount like helmet and chest strap

Attach your GoPro camera to the curved surface such as helmet with the curved surface mount

3-way adjustable pivot arm makes your GoPro extend in different angles. And it can be used with any other adapters like GoPro mount, helmet mount, etc

Widely suitable for GoPro Hero 4/3+/3/2/1, SJ4000/SJ5000/SJ6000, Xiaomi Yi, etc