Jiale Aluminium Alloy Skeleton Thick Solid Protective Housing Case Shell Frame for GoPro HD Hero 4 Black Brand New and high quality.CNC Aluminum Frame with Screws Lens Cap, for GoPro Hero 4. Prevents camera from crash caused by overheating. 1/4 inch screw hole,Compatible with any tripod. Can mount UV lens,filter lens,polarizing lens of diameter 37mm. Compatible with Gopro Hero 4.