- Large capacity with adjustable volume to keep extensive documents neatly organized; ideal for study and work due to efficient organization and portable design. - Practical transport: usable in portrait (vertical) or landscape (horizontal) orientation with a reinforced carry handle for secure transport. Space-saving construction maximizes capacity without bulk. - Wide compatibility: fits well in drawers and on shelves with adjustable layout options; supports both horizontal and vertical storage solutions. - Safe materials: protects documents from tearing, bending and moisture; leak-proof, stain-resistant properties and a waterproof exterior for lasting durability. - Use scenario: Ideal for students organizing lecture notes, readings and assignments between classes. - Use scenario: Professional filing of contracts, invoices and project documents in a desk drawer or on a shelf with flexible layouts. - Use scenario: Suitable for fieldwork or travel, keeping important documents protected from moisture while moving between locations.