1. Thickened paper, fine printing, no ink bleeding 2. Double coil loading nail, not easy to fall apart, 360 degrees over, 180 degrees flat, flexible writing 3. Curved rounded edge design, safe writing 4. Fine paper, smooth writing 5. Clear and durable printing, smooth and delicate hand feeling 6. Material: paper 7. Number of pages: 60 sheets / book total 120 pages 8. Description: 4 books / set 9. Size: about 20.3 x 14cm 10. Weight: about 140g
