Features: The CPL lens filter can improve the blue sky tone and simulates night effect. Improve the image clarity, texture and color saturation of non-metallic objects on the surface of the flare. 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. 2 filter a pack to meet your different photography demands. Suitable for Xiaomi, for YI, for Gopro and other sports camera which lens caliber is 37mm. Great accessory for photography enthusiasts. Specifications: Condition: 100% Brand New and High Quality Material: Aluminum Alloy + Glass Color: Black Lens Caliber: Approx. 37mm / 1.4inch Size: Approx. 4 x 2.5cm / 1.5 x 0.9inch Suitable for Xiaomi, for YI, for Gopro and other Sports Camera which Lens Caliber is 37mm Weight: Approx. 26g Packing List: 1 x UV Lens Filter 1 x CPL Lens Filter 1 x Lens Cap 1 x Adapter Ring 1The CPL lens filter can improve the blue sky tone and simulates night effect. Improve the image clarity, texture and color saturation of non-metallic objects on the surface of the flare. 2UV 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 reproduc 32 filter a pack to meet your different photography demands. 4Suitable for Xiaomi, for YI, for Gopro and other sports camera which lens caliber is 37mm. 5Great accessory for photography enthusiasts.