Feature: 1. Optical Glass Quality: Precisely ground and polished optical glass provides high definition imaging, while the aviation aluminum frame ensures reliability and longevity, suitable for GO3S action cameras. 2. ND Filter Function: Reduce light intake, prevent overexposure, resist scattered light, enhance color saturation, and improve image clarity, allowing for vibrant and transparent visuals, especially useful for adjusting shutter speed when shooting videos. 3. Dual Sided Nano Coating: Utilizing a dual sided multi layer nano coating process, the lens ND filter restores true colors, resists oil and water on both sides, protecting the lens from external elements without compromising image quality. 4. Anti Slip Edge Design: The anti slip design on the action camera ND filter's edge facilitates easy installation and tightening of the filter, enhancing convenience and user friendliness during operating. 5. Photography Accessory: Safely attach the ND filter to your action camera without damaging the original lens, enabling seamless filter replacement and making it an excellent accessory for enhancing action camera photography. Specification: Item Type: Action Camera ND Filter Set Material: Aluminum Alloy, Optical Glass ND Filter: ND8, ND16, ND32, ND64. Package List: 1 x ND8 Filter 1 x ND16 Filter 1 x ND32 Filter 1 x ND64 Filter 1 x Carry Case 1 x Cleaning Cloth