Features: Insert design, transparent inner bag, allowing for clear viewing of files and easy classification and organization. 80/84/160 pocket, with large capacity, 2 styles to meet various storage needs. Exquisite workmanship, sturdy, full of durability, and not easy to fall off pages. Waterproof PP material, not easily deformed, rounded design, no scratching. Can be used in offices, libraries, schools, study rooms, etc. Specifications: Material: PP Plastic Type: snap button, no snap button Capacity: 84-grid(28 sheet), 80-grid(20 sheet), 160-grid(40 sheet) Size: approx. 117x217mm/4.61x8.54inch, 155x200mm/6.10x7.87inch(refer to pictures) Package Includes: 2Pcs Card Album note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.