Action Mount Aluminum Alloy Extension Arm Mount Kits + Green Thumb Screw Set + Aluminum Tightening Wrench for Gopro Cameras. Use This Kit to Extend Helmet Mount, Hand Grip Mount, and More. UNIVERSAL - Kit works with any GoPro or Action Mount Accessory. Screws are a perfect substitute the plastic thumbscrew for GoPro Cameras ( HD Hero2,Hero3, Hero3+) HIGH QUALITY - Billet Aluminum extension arms and thumbscrews, high-Strength, high rigidity & precision CNC machining aluminum alloy srews STRONG HOLD - The bolt & nut assembly is super lightweight high quality aluminum bolt nut screw WHEN TO USE THIS - Great kit for extending a Surf Mount, Helmet Mount, Suction Cup Mount, bike, motorcycle and other sport mounts. Wrench ensures that you can get it tight. You need the wrench! INCLUDES - 5 extension arms, 3 screws (2 short, 1 long), plus the nuts, along with a black aluminum GoPro tightening wrench that is compatible with 2 styles of screws.