New Gold Color Aluminum Metal Lanyard Lens Ring Mount + Screwdriver For GoPro Hero 3 1.Made of CNC anodized aluminum, durable for long term use. 2.Extremely light weight but much stronger than plastic. 3.Aluminum Metal Lanyard Ring + Screwdriver set 4. Fit for all GoPro Hero 3 Hero 3+ version 5.These rings are very easy to install.