1. Metal rounded edges, fine workmanship, no burrs 2. Double-coil binding, smooth and sturdy page turning, can turn pages 360 degrees 3. 100g high quality double glued paper inside, smooth writing, not easy to seep ink 4. Binding: metal double coil 5. Material: 100g double-gummed paper inside. 6. Number of pages: 81/162 pages 7. Size: about 21.7 x 15.8cm 8. Weight: about 320g
