【For Action 5 Pro/Action 4/Action 3】 This filter accessories kit compatible with DJI Osmo Action 5 Pro, Action 4 (Action 4 Adventure Combo), and Action 3. Ideal for POV shots and vlogs of surfing, kayaking, skiing, mountain biking, skydiving, skateboarding, and hiking. Note: While the filters feature waterproof coatings, the entire action camera should not be used underwater 【Precise Exposure Control】 ND8, ND16, ND32, ND64, and ND256 filters reduce light by 3, 4, 5, 6, and 8 stops respectively. They offer precise exposure control in different light conditions, prevent overexposure in long exposure photography, and bring dynamic motion blur effects 【Enhanced Contrast & Saturation】 The CPL filter (circular polarizer) minimizes reflection on nonmetallic surfaces, such as glass and water, and boosts saturation and contrast for vibrant colors 【Multicoated HD Optical Glass】 HD optical glass ensures exceptional image clarity. Multiple nanometer coatings on both sides resist water, scratches, and fingerprints 【Convenient Snap On Attachment】 Instantly attach to the camera's original filter and you are ready to shoot! Nonslip interiors keep filters firmly in place