Feature: 1. 【ND Filter Reduces Light Hitting】ND filter can reduce light hitting and prolong the time of exposure, restore the speedy effect of the riding, the silky and lingering effect of the flowing water and the dynamic change of the cloud. 2. 【Double-sided Multilayer Scratch-proof Coating】Reduce the light reflection between lens, and thus displaying higher resolution and generating higher quality images. The filter won\u0027t block the field of view of the host lens, producing crystal clear images without dark field. 3. 【Waterproof and Anti-fogging】The rubber ring inside the filter can effectively isolate the water droplets or vapor, giving you carefree using experience in whatever negative environment, like underwater, in the rain, low temperature, wet and other negative environment. 4. 【Use the wrench for quick and safe dismantle】Screw off the original lens guard and replace with our filter with the help of the wrench provided. Of the same thread design of the original lens guard, our filter is waterproof, anti-fogging and drop-proof, which can provide maximum protection for the camera. 5. 【Extra Thick Glass Lens for Upgraded Protection】No fear of scratches, drops, collision and high water pressure with 1.5mm extra-thick glass lens. Specification: Features: 【ND Filter Reduces Light Hitting】ND filter can reduce light hitting and prolong the time of exposure, restore the speedy effect of the riding, the silky and lingering effect of the flowing water and the dynamic change of the cloud. 【Double-sided Multilayer Scratch-proof Coating】Reduce the light reflection between lens, and thus displaying higher resolution and generating higher quality images. The filter won't block the field of view of the host lens, producing crystal clear images without dark field. 【Waterproof and Anti-fogging】The rubber ring inside the filter can effectively isolate the water droplets or vapor, giving you carefree using experience in whatever negative environment, like underwater, in the rain, low temperature, wet and other negative environment. 【Use the wrench for quick and safe dismantle】Screw off the original lens guard and replace with our filter with the help of the wrench provided. Of the same thread design of the original lens guard, our filter is waterproof, anti-fogging and drop-proof, which can provide maximum protection for the camera. 【Extra Thick Glass Lens for Upgraded Protection】No fear of scratches, drops, collision and high water pressure with 1.5mm extra-thick glass lens. Specifications: Material: ABS + Optical Glass Dimensions: 35.3 * 35.3 * 7.2mm Packing List: 4 * ND Filter 1 * Wrench Package List: 4 * ND Filter 1 * Wrench