Specification Brand : GOWENIC BulletPoint1 : Robust PU Leather Material: Made of premium PU leather, this focus board is resistant to damage, wear, and can be easily cleaned when dirty, ensuring a long service life. BulletPoint2 : Dual Sided Design: One side features an 18% gray with auxiliary focus scales, while the other side is pure white, making it an ideal tool for adjusting white balance in photography. BulletPoint3 : Balanced Exposure: The gray card balances complex lighting scenes to 18% neutral gray, allowing for accurate exposure values to be recorded using a light meter for excellent photo capturing. BulletPoint4 : Versatile Use: The white balance board can also be utilized for product photography and fill in lighting, providing additional functionality focusing assistance. BulletPoint5 : Foldable and Portable: Foldable for easy storage in the included pouch, the focus board can be carried in a photography bag for on the use, ensuring convenience and practicality. ItemName : Camera Focus Board, 30cm White Balance Card,18% Exposure Gray Reflectance Reflector, Double Sided Foldable Reference Card with Carry Pouch for Photography ItemPackageDimensions_Height : 3 centimeters ItemPackageDimensions_Length : 15 centimeters ItemPackageDimensions_Width : 15 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : photographic-lighting-reflectors Manufacturer : GOWENIC ModelName : GOWENICdvg74x8puc ModelNumber : GOWENICdvg74x8puc PartNumber : GOWENICdvg74x8puc ProductDescription : 1. Robust PU Leather Material: Made of premium PU leather, this focus board is resistant to damage, wear, and can be easily cleaned when dirty, ensuring a long service life. 2. Dual Sided Design: One side features an 18% gray with auxiliary focus scales, while the other side is pure white, making it an ideal tool for adjusting white balance in photography. 3. Balanced Exposure: The gray card balances complex lighting scenes to 18% neutral gray, allowing for accurate exposure values to be recorded using a light meter for excellent photo capturing. 4. Versatile Use: The white balance board can also be utilized for product photography and fill in lighting, providing additional functionality focusing assistance. 5. Foldable and Portable: Foldable for easy storage in the included pouch, the focus board can be carried in a photography bag for on the use, ensuring convenience and practicality.