UV 37mm Protective Lens Filter for YI II 4K Action Sports Camera Features: UV filter is for the seaside, mountain, snow and open areas such as the shooting environment, can reduce the blue light caused by the blue tone. Can eliminate the interference of ultraviolet rays on the CCD, help to improve the clarity and color reproduction effect. Suitable for Xiaomi, for YI, for Gopro and other sports camera which lens caliber is 37mm. Great accessory for photography enthusiasts. Lens Filter can Protect the lens from dust, fingerprints and other pollution. Meet your photography demands. Specifications: Condition: Material: Aluminum Alloy + Glass Color: Black Lens Caliber: Approx. 37mm / 1.4inch Size: Approx. 3.8 x 1.8cm / 1.5 x 0.7inch Suitable for Xiaomi, for YI, for Gopro and other Sports Camera which Lens Caliber is 37mm Weight: Approx. 21g Packing List: 1 x UV Lens Filter 1 x Lens Cap 1 x Adapter Ring