- Viewable temporary binding: bind multiple pages into a compact, book-like format for easy viewing and use. Rotated 90 degrees to the right from the prototype to simplify disassembly. - Strong center seam binding: middle seam can be nailed for long-term use; supports paper depth up to 65 mm; wide and thick metal base; threaded shell provides stable, durable binding. - High durability and capacity: binding life up to 20,000 cycles; supports up to 50 pages per binding row; capable of multiple rows bound together. - Robust hardware: clips with pointed nails; steel needles and components made of metal for reliable performance. - Practical design and styling: ABS shell with a clean, professional look; comfortable steel body nail groove; fine workmanship and easy to use; well suited for desktops in offices, homes, or classrooms. - Use scenarios: preparing class handouts that need quick binding and easy removal; organizing project notes for brainstorming sessions; assembling meeting materials that require durable, temporary binding.