The phot r quick release buckle for gopro hero is designed so you can mount your gopro camera to other accessories such as the waterproof housing helmet straps head and chest mounts as well as various other accessories the buckles are easy to install and simply clicks in to place all gopro cameras can be mounted to them and are lightweight so you can take them with you along with any other accessories the phot r thumb screw for gopro hero allows you to attach your gopro hd hero to any gopr