The filter features a 2.0mm thick optical lens and is waterproof and pressure-resistant to 10 meters. Combined with a built-in rubber sealing ring, it effectively prevents fogging and water ingress, ensuring stable operation in various underwater environments. Installation is simple and quick, with a dedicated wrench included for easy replacement of the original lens hood. The filter threads are identical to the original design, maintaining the overall harmony of the camera after installation. The kit includes three professional-grade filters: a light red filter for shallow snorkeling, subtly correcting blue tones and restoring natural skin tones; a deep red filter for mid-to-deep water shooting, enhancing warm tones and counteracting green light interference; and a purple filter specifically designed for freshwater environments, enhancing blue performance. The product is made of ABS+acrylic, with a robust and durable structure, weighing only 8g, adding almost no extra burden. It is perfectly compatible and suitable for various scenarios such as snorkeling, scuba diving, and freshwater shooting, making it a reliable partner for your underwater creative endeavors.