1. FASHION AND PORTABLE: Classic, simple, and stylish design suitable for business meetings, school, or travel document bags. Easy to carry. The portable expansion folder fits various applications and is widely used by teachers, students, lawyers, construction engineers, and office workers. 2. MATERIAL: Made of PP (polypropylene) material. Durable, waterproof, odorless, ecofriendly, and resistant to cracking or deformation even after longterm use. 3. CREATIVE DESIGN: The expansion folder features a sleek and stylish look. Its compartment design is neat and easy to organize, while the label system helps maintain a tidy and efficient professional life. 4. EFFICIENT AND PRACTICAL: The expandable file box can store a large number of documents, eliminating worries about misplaced or hardtofind files. The accordion folder includes labeled sections for quick retrieval, saving time and boosting productivity.