Wheelchair Rail - Tube Mount for GoPro Hero with Extension & Double Socket Swivel Arm (sku 21709)Wheelchair Rail and Tube Mount for GoPro Hero with Extension and Double Socket Swivel Arm. This Mount features a tool less Small Tough Claw base with 1" rubber ball, a Long Double Socket Arm, a Double 1" Ball Adapter, a Double Socket Swivel Arm with central hinge together with a Custom GoPro Hero Camera Adapter. With four points of rubberized 360 degree rotation and a connecting central pivot hinge joint that rotates forward and back 180 degree this