Product material: PP hard shell, waterproof, not easy to break and deform, strong flexibility, not afraid of pressure, to ensure a longer service life. Environmental protection inner bag, large capacity, elastic, durable, not easy to tear.Large capacity: 13-pocket design, can store about 1300 sheets, suitable for A4 and letter size. Never be bothered by a messy desk. The size is adjustable, ranging from a minimum of 4 cm to a maximum of 32 cm.Excellent stability: not only a unique design, but also an innovation in grip on the ground. Just like the desktop file holder, the extended file holder can be placed firmly on the table and will not fall or shake easily.Portable and Convenient: The A4 accordion file manager is easy to carry. The operation is simple and the file access is convenient. It has a handle that is easy to move. Very suitable for use in your office, school, home, etc. You can also organize your files.Multi-functional application: Extensive file manager can store various files, such as documents, receipts, business cards, vouchers, coupons, etc. Suitable for home, office, school and travel.