1. Pen material: mixed squirrel hair 2. Stroke shape: fat flat peak 3. Process: copper tube, handwork 4. Good water storage, not easy to shed hair 5. The pen is smooth and can be applied in large areas 6. Metal connection tube 7. Weight: 30g 8. Size: No. 12 is 19.4 cm long, No. 16 is 20.1 cm long, No. 24 is 21.5 cm long
