The Tranbo CB320 is a green A4 report folder designed to keep your documents organized and secure. Made from polypropylene plastic, this folder is both waterproof and oil-proof, which helps protect your papers from accidental spills or moisture during daily use. Because the material is non-toxic and recyclable, it is a practical choice for those who prefer environmentally conscious office supplies. Its durable construction makes it suitable for students or professionals who need a reliable way to carry and present files without worrying about wear and tear.