The GoTough Silicone Mount from FotodioX is designed to be used with a GoPro HERO or HERO5 Session camera (available separately). It is a silicone sleeve that surrounds the camera and firmly holds the pre-installed ND16 1.2 (4-stop) filter in front of the lens.
The included Neutral Density filter is designed for reducing light in bright conditions as well as reducing the camera's shutter speed. While filming in bright conditions, the ND filter will reduce excess bright light and reduce overexposure and blown out video. The filter will also reduce the shutter speed creating a blur motion. It fixes the common "Jello Effect" or wobble commonly associated with RC planes/quadcopters and motorsports.