This file folder is made of high quality polypropylene (PP) material (nontoxic and nonradioactive), not easy to break and deformation. Size 12 1/4"x 9 1/4", which makes this accordion document file folders with portable-handle suitable for daily filing and storing of documents, fits A4 size and letter size. This Labels Expanding File can hold approximately 400 sheets. 13 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.