Product material: PP hard shell, waterproof, not easy to break and deform, strong flexibility, not afraid to be pressed, to ensure a longer service life. Environmental protection inner bag , large capacity, flexible,durable, not easy to tear. Large Capacity: 24-pocket design, can store about 3300 sheets, suitable for A4 and letter size. Never be bothered by a messy desktop. The waist is adjustable, extending from a minimum of 4cm to a maximum of 66cm. Excellent Stability: Not only a unique design, but also an innovation in ground grip. Just like the file rack on the table, the extended file rack can be placed firmly on the table without falling or shakingeasily. Portable and Convenient: The A4 accordion file manager is easy to carry. Simple operation and convenient file access. It has a handle for easy movement. Very suitable for use in your office, school, home,etc You can also organize your files. Multifunctional Application: Extensive file manager can store various files, such as documents, receipts, business cards, vouchers, coupons, etc. Suitable for home, office, school and travel.