This OEM Zipper Binder Pocket is designed to fit inside standard 3-ring binders with its 3-hole punched design. The holes are reinforced for added durability, ensuring that your important documents are securely held. Featuring a zipper closure and strong mesh material, this binder pocket keeps your documents safe and organized. The size of the binder pocket is 7.50" x 10.50", making it a practical choice for various storage needs.