[High-quality material] The accordion-style file storage rack is made of high-quality PP plastic, which is durable, waterproof, non-radiation, and not easy to deform and break. It is convenient to carry on business travel, library, school or home. [Large capacity] There are 13 independent pockets, which can be expanded to 1 1/8 inches (about 3.8 cm), suitable for A4 paper and letter size. It has enough space to archive 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 neatly classify your files and important documents. [Slide-in reminder table] Easily 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 pens, highlighters and other common sundries. [Smooth 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 store your files safely, without worrying about losing important files anywhere. Colour: A: black + gray Material: PP plastic Package Contents: 2 x Zipper organizer