[ material] The accordion-style file storage rack is made of PP plastic, which is durable, waterproof, non-radiation, and not easy to deform and . It is convenient to carry on business travel, library, school or home.[ capacity] There are 13 pockets, which can be expanded to 1 1/8 inches (about 3.8 cm), suitable for A4 paper and size. It has enough space to all important documents, such as class tasks, notes, reports, bills, receipts, invoices, vouchers, contracts. Each accordion folder is prepared with colored sticky labels to clearly and classify your files and important documents.[Slide-in reminder table] identify your document through the label, remind you what and location. The label can be checked through the transparent cover of the document. In addition, each folder is provided with labels, because you can also make your own label slot is a sliding type.[Useful extra pocket] The expandable folder is equipped with a colored sticky label for quickly marking and identifying the contents of the folder. The front pocket has a depth of 3.5 inches (approximately 8.9 cm), which is perfect for holding , highlighters and other common sundries.[ and sturdy zipper] The accordion folder adopts a one-way zipper design, which is convenient for document access and storage. The zippered accordion folder helps to your files safely, without worrying about losing important files anywhere.Colour: A: black + grayMaterial: PP plasticPackage Contents:1 * Zipper organizer