【For Osmo Action 5 Pro/ Action4】 ONLY compatible with DJI Osmo Action 5 Pro and Action 4. This filter set features perfect for POV shots of surfing, kayaking, skiing, mountain biking, skydiving, skateboarding, and other sports. Note: Not for underwater use, as water will enter and affect the image quality 【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 【Easy Thread On Attachment】 Thread on design allows for easy installation and removal while keeping the filter firmly in place during intense outdoor activities 【Important Note】 Please remove the original lens before filter attachment. If you'd rather not remove the lens, check out our snap on filter series for Osmo Action 5 Pro and Action 4