Features: Designed for Xiaomi Yi 4k/4k+/Lite action cameras. This filter can limit the reflection from non-metal surface, such as water and glass windows. With the filter, the color shall become brighter and clearer and the contrast shall be strengthened. It can effectively protect your camera lens from dust, dirt and scratches. Easy to mount and remove. Nice accessory for photography lovers. Specification: Condition: 100% Brand New Material: Metal Glass Color: Black Compatibility: for Xiaomi Yi 4k/4k+/Lite Size(Dia * Thickness): Approx. 3.7 * 2.5cm / 1.5 * 1.0in Weight: Approx. 25g Packing List: 1 x Filter Lens 1 x Adapter Ring 1 x Protective Cap Package List 1Designed for Xiaomi Yi 4k/4k+/Lite action cameras. 2This filter can limit the reflection from non-metal surface, such as water and glass windows. 3With the filter, the color shall become brighter and clearer and the contrast shall be strengthened. 4It can effectively protect your camera lens from dust, dirt and scratches. 5Easy to mount and remove. Nice accessory for photography lovers.