Description A must for photographersAn essential part in digital photography process for photographers or hobbyists. Each roleThe grey side works for the exposure correction and white side for white balance setting.Gray cards can be used for in-camera white balance or post-processing white balance. Excellent resultsBy 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 Safe and durableWearable and washable, foldable and anti-deformation, Very durable.Provide a standard reference object for exposure determination in photography. Delivery Quantity: 1pc Package Contents: Only the above package contents, excluding other products. Size: 30*30cm (Reminder: The size is measured manually, please allow 1-2 cm measurement error) Color: Color as shown (Due to different monitors and lighting effects, the actual color of the item may be slightly different from the color shown on the picture.)