KDTD Housing Shell CNC Aluminum Frame Case Alloy Protective Cage with 37mm UV Lens Filter & Lens Cap for GoPro HERO 4(Black) Brand new and high quality Prevent 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 CNC aluminum alloy injection molded, stable deformation, for aerial photography, you will not worry about the impact of the wind