Multi-layer coating lens
Ultra-thin Frame
Specifically designed for GoPro Hero 9 Black
Specification:
Frame Material: Aviation Aluminum Alloy
Lens Material: Optical Glass
How to install it:
You have to remove the lens on the camera and put the filter lens on it instead.
Remove lens with counterclockwise twist 45-degrees, then reverse procedure to put on filter lens.
Replace with filter lens rotating 45-degrees clockwise.