1. Size: 33x24x3.5cm / 13x9.5x1.4 inches, can store letters, A4 paper, documents, invoices, contracts, and standard US papers, holding up to 300 500 sheets. The document paper folder is easy to carry and can fit into your backpack, briefcase, luggage, etc. 2. Durable and Waterproof – This expanding file organizer is made of quality PVC, strong and flexible, resistant to wear and tear, waterproof, and moistureproof, keeping your important documents clean. 3. Expandable Pockets with Tabs – The file jacket features 13 or 7 expandable individual pockets to organize different documents into sections. It comes with tab inserts so you can label and easily locate each file, helping you keep everything in without clutter. 4. Secure Design – Our folder organizer has a flap with an elastic cord closure, securely protecting documents during transport, allowing you to take your files wherever you go.