【COMPATIBILITY】Only suitable for Go Pro Hero 13/12/11/10/9 black, can be directly installed with MAX lens and ND CPL filter without removing the protective frame. 【Perfect Fit】 1:1 customized aluminum alloy metal protection frame according to the appearance and details of the Go Pro Hero 13 /12 /11 /10 /9 action camera. While preventing damage to your camera from dropping, the buttons, microphone holes, side battery cover and the 1/4 adapter position on the bottom of the camera can be successfully removed as well as normal use of the camera, the battery, memory card and bracket. It also comes with a replaceable direct rechargeable battery cover, so you don't have to replace the battery and interrupt shooting while using the camera. (High Quality Aluminum Alloy Material) Made of high quality aluminum alloy material, sturdy and durable and wear-resistant, completely protects the camera body and reduces damage. Due to the unique tempering process, the protective frame itself weighs only 1.6 oz (48.5 g). Protective frame has built-in elastic rubber pad to protect your camera from scratches. 【Multiple interface, multi-angle shooting】This protective frame is designed with 2 cold shoe interfaces and 1/4 thread interface, can be used to install fill-light, external microphone, microphone, selfie stick and other accessories during shooting. 1/4 threaded side interface and bottom of GoPro folding magnetic base connect to selfie stick for vertical or horizontal shooting. 【Package list】Aluminum alloy protection frame x1, Action camera adapter base x1, 1/4 screw hole base x1, screw x1, silicone lens protective cover x1.