Item Type: White Balance Lens Cover Material: Plastic Caliber: Approx. 58mm / 2.3in Weight: Approx. 14g / 0.5oz Package List 1 x White Balance Cover 1[White Balance Calibration] The white balance lens cover is used for camera white balance calibration, allowing the camera to captures true colors. 2[Durable Material] This white balance cover is made of high quality plastic material, which is anti corrosion, anti oxidation, durable, can be used for a long time. 3[Wear Resistant And Dustproof] Can be used as an ordinary lens cover to protect the lens from abrasion and dust, simple to install, easy to use, compact and easy to carry, so you can use it with confidence. 4[Stable Performance] Derived from the working principle of CCD and CMOS and is specially designed for the white balance needs of digital cameras, can overcome the defect that the CCD cannot accurately reproduce the color under complex light conditions. 5[Widely Application] Suitable for the needs of professionals for high end photography, and the color temperature of the scene has been measured to achieve the purpose of color balance.