3-way Pivot Arm Assembly Extension + 4x thumb knob for GoPro Hero 3/2/1

Short Description Material ABS plastic, high quality Make your Gopro extend in different angles Can be used with any other adapters like gopro mount, helmet mount ETC   In The Box 2x Pivot arm assembly  4x Thumb knob   Long Description Material ABS plastic, high qualityMake your Gopro extend in different anglesCan be used with any other adapters like gopro mount, helmet mount ETC