Expandable Portable Accordion File Document Folder File Organizer with Snap Button A4 and Letter Size 12 Pockets Black Material: High quality Polypropylene (PP) material (nontoxic and nonradioactive), Not easy to break and deformation. Dimessions: 12.99" L x 9.84" W x 0.78" H, which makes it suitable for daily filing and storing of documents; Fit A4 Size and Letter Size. It can hold approximately 400 sheets. Style: 12 pockets, along small colored labels which helps classify and organize files easily with a stylish appearance. Human body engineering handle 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.