Expandable Portable Accordion File Document Folder File Organizer,UBaymax Canvas 13 Pockets File Binder A4 and Letter Size Black Material: 700D Polyester and High quality Polypropylene (PP) material (nontoxic and nonradioactive), Not easy to break and deformation. Size : 13.97" x 10.63" x 1.45" , which makes it suitable for daily filing and storing of documents; Fit A4 Size and Letter Size. It can hold approximately 400 sheets. Style: 13 pockets, along small colored labels which helps classify and organize files easily with a stylish appearance. Human body engineering design makes it more comfortable to carry. Large-capacity file folder is your good assistant in your office life. Matte texture feel more comfortable, durable deformation.