Features:1. This is a photographic calibion tricolor card.2. The white card is used to adjust the white balance, the gray card is used to adjust the exposure, and the black card is used to shade.3. Compact and portable. This tricolor card is very portable, you can put them in your coat pocket.4. Whether you are a professional or amateur, the white balance board is a good helper to help you take photos.5. Use these three cards. You can take more beautiful photos.Description:This is a tricolor card to help photographers take pictures, the white card is used to adjust the white balance, the gray card is used to adjust the exposure, and the black card is used to shade. Specifications: Size: 8.5*5.5cm Material: Plastic Type: 18 Package Included:1 set * three color balance cardNotes:1. Please allow 0-1 inch error due to manual measurement. Thanks for your understanding.2. Monitors are not calibed same, item color displayed in photos may be showing slightly different from real object.