The Lens Filter Cap from DJI is designed to protect the lens of your Osmo Action camera. Made from dust-resistant glass with a special coating, it helps resist fingerprint smudges and scratches, keeping your lens in pristine condition. Additionally, the cap acts as a barrier against water, preventing moisture from damaging the lens. The quick-release design makes it easy to attach or remove the cap, offering convenience while keeping your lens safe from environmental elements.