This handy phot r spanner is specially designed to tighten and loosen the thumb screw of your gopro hero camera the spanner enables you to secure your gopro camera tightly to a range of mounts and attachments with ease no more struggling to tighten with your hands and peace of mind that your device is attached securely compact and lightweight with a useful lanyard the tool is perfect for throwing into your camera bag or carrying in your pocket in case you need it works especially well