The GoPole Arm 2-Piece Extension Kit attaches to any three-prong GoPro style mount, allowing you to capture more of yourself and your surroundings in the frame. It features two extension arms for 8 or 16 configurations, with notches on the pieces for locking them together at any angle between -45° and +45°. Hi-torque thumbscrews are included for securing the arm pieces together and to your mount, and securing your GoPro HERO camera to the integrated three-prong mounting interface.