Description:With this term, there is no need for you to worry that the photos are too dark or too bright, and the color is bluish or yellow. It is to provide a standard reference object for exposure determination in photography. In addition to providing a means for measuring exposure, a gray card provides a convenient reference for white balance, or color balance, allowing the camera to compensate for the illuminant color in a scene. Nice gift for photography lovers.Features:An essential part in digital photography process for photographers or hobbyists.The grey side works for the exposure correction and white side for white balance setting.By placing a gray card in the scene to be photographed, oriented at a defined angle relative to the direction of the incident light, and taking a reading from it with a reflected light meter, the photographer can be assured of consistent exposures across their photographs. Gray cards can be used for in-camera white balance or post-processing white balance.Provide a standard reference object for exposure determination in photography. Wearable and washable, and anti-deformation, Very durable.Specification:Condition: Brand NewMaterial: PUColor: Black + Grey + WhiteSize: Approx. 30 * 30cm / 11.8 * 11.8inWeight: Approx. 78gPacking List:1 x 18% Grey White Balance Focus Card1 x Carrying Bag.