Goliton Aluminum lens Ring Mount For Gopro Hero 2 Camera - Blue Material: Aluminum Compatible with Gopro Hero 2. With this Lanyard Ring you will be able to secure your camera, and easily find it . Made of CNC anodized aluminum, durable for long term use. These rings are very easy to install. Use a philips head screwdriver, remove the six screws, remove the GoPro plastic ring, replace with lanyard ring, place screws in lanyard ring and tighten.