Action Mount | Black CNC Aluminum Alloy Helmet Extension for Gopro HD Hero4 Hero3+ Hero3 Hero2 Camera, or Action Mount Adapter | Aluminum Part EXTEND: Fit this extension between your GoPro camera and helmet mount, side mount, suction cup mount or hand grip and take your shots to the next level for GoPro Cameras ( HD Hero2,Hero3, Hero3+) HIGH QUALITY - Billet Aluminum, high-Strength, high rigidity & precision CNC machining aluminum alloy STRONG - lightweight high quality aluminum COLOR: Anodized Black. Length: 6.5" UNIVERSAL: This part works with any GoPro style camera, or can also be used with the Action Mount, which allows you to use your smartphone for POV footage.