【High Quality Aluminum Alloy Made.Compatible with Gopro Hero 11/10/9 Black Action Camera】Compatible with Gopro Hero 11/10/9 Black Action Camera, High quality aluminum alloy CNC processing, Delicate Design, easy to install. Weight:110g / 3.88oz 【With 52mm UV Filter +Bottom Screw Holes with Adapter Allows to Mount the Protective Case】The case comes with a 52mm UV Filter. but you can also mount other filter lens or polarizing lens of diameter 52mm lens with this case.bottom screw holes with adapter allows to mount the protective case with monopod.tripod,bike mount or other kit. 【With Metal Back Door,A Security Door for your Gopro's Safety】with aluminum alloy back door.your Gopro camera will be more safety during high-velocity sport or daily using. No more worries about your Gopro camera will falling out. you can just enjoy your shooting time. 【All in One Integrated Top & Side Cold Shoe Design,Less Installation Steps+Side Open Design Allows to Change Battery or Connect the USB Cable without Take Out the Camera】 with integrated top & side cold shoe design : you can mount a flash, video light, microphone on this case.,less installation steps,more convenient.Sides open design allows to change battery or connect HDMI & USB ports cables quickly. 【More Durable Than Plastic Case + Multifunctional Essential Metal Case with Bottom Hollow Design to Prevent Your Camera Overheating】Aluminum alloy CNC Process, make this aluminum case more durable than plastic one, and this case has bottom hollow design can also prevent your camera damaging or caused by overheating, it could mount with bicycles, hand rack, helmet, chest belt, or other kit etc... Kindly Note:The Aluminum Case have LOGO(FIFIELD for HERO 11/10/9) on it This product is a metal protect case for Gopro 9/10/11 action cameras,better protect a good camera from being broken.