YUYIKES Aluminium Fishbone Wrench Nut Screw Tool Spanner Tighten For GoPro Hero 3+ 3 2 Cameras Cute shape of fishbone, specified wrench for GoPro Hero3/3+ Made of aluminum alloy, CNC machine process, lightweight but durable. It will help you to secure your GoPro camera a lot tighter than trying to tighten it by hand. Works especially well when trying to install the camera with multiple extensions and more force needed tightening the knobs. Works with all standard GoPro mounting knobs and Hero Gear knobs