Large Capacity Plastic Expandable File Folder: A4 Paper / Letter Size plastic envelope portfolio. Expandable to hold up to 2.8''/7cm, 1000 pages large capacity, with canvas cloth gusset. These expandable folders can help you easily carry large books and documents. Premium Quality: Our plastic wallet is made of super thick polypropylene, tear and water resistant, odorless, non-toxic, environmentally friendly, not easy to break and deform. Perfect for long-term storage of your important documents. Intimate Design: Each envelope with a label pocket and snap button, helps you better sort through the different files. Newest Version: Metal reinforced buckles and fabric gusset with stitched edge provide twice the lifespan. Avoid it cracking as easily as a regular folder and protect your fingers from scratches. Easy Storage: Our plastic pocket is portable to keep your things organized and help you sort out the clutter, the envelope bags can be used in school, home, work, office, travel and business trips. The small label pocket on the outside helps you classify and identify your documents.