SUPERIOR IMAGE QUALITY - Capture crystal-clear footage with these ND filters, reducing light for cinematic shots and balanced exposure in various lighting conditions. ENHANCED DURABILITY - Constructed with premium materials, these filters offer exceptional scratch resistance, ensuring long-lasting performance even in demanding shooting environments. BROAD COMPATIBILITY - Specifically designed for Osmo Action 3 & 4 cameras, these filters seamlessly integrate, maintaining optimal performance and easy installation. OPTIMIZED WATERPROOFING - Confidently shoot in wet environments; these filters maintain a waterproof seal, protecting your lens from splashes and moisture damage.