Our premium 3-ring clear view .5-inch white A4 binders are manufactured in the USA from 125pt chipboard and premium single embossed vinyl. A4 binders are designed to accommodate international A4 paper which is 210mm x 297mm (8.27" x 11.69"). The D-style rings are spaced 4.25" which is standard for US 3-ring binders. The front cover and spine feature a clear overlay for easy customization of your projects. The inside front cover and inside back cover both have 4-inch clear pockets.