【Only For Action 5 Pro / 4 / 3】 This filter kit is ideal for POV shots of skiing, cycling, skydiving, skateboarding, and running. Compatible with DJI Osmo Action 5 Pro, Action 4, and Action 3. Not compatible with Osmo Nano 【Precise Exposure Control】 ND8, ND16, and ND32 filters reduce light by 3, 4, and 5 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 circular polarizer filter 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 are water repellent, scratch resistant, and anti fingerprint 【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