LOPOO Case for Gopro Hero 4 Protective Housing Case for Gopro Hero 4 CNC Aluminum Alloy Housing Shell Protective Case for Gopro hero 4 Thick Solid Shell Frame 37mm UV Lens Cover(Black) Anti-Crashing:Durable protective skeleton frame prevents your Gopro Hero 4 from crashing. Premium Material: CNC technology with accurate holes fits your hero 4 very well. Wrist Strap: Prevents you Gopro camera from dropping down while taking photos DIY Lens Cover: Can install UV lens, filter lens or polarizing lens of 31mm diameter. Compatible :This housing case is made of aluminum alloy, ONLY designed for Gopro Hero 4