1. Pen holder material: PP 2. Nib material: copper tip 3. 0.4mm fine needle tube tip for smooth writing 4. The refill is adequately filled with ink, and the writing endurance is strong 5. The pen body is ergonomically designed and comfortable to hold 6. Breathable pen cap to prevent accidental ingestion 7. Microporous nylon pen tip, wear-resistant and not easy to break 8. Pen body length: 166 mm 9. Size: (20 colors-102 colors) 21.1x19x1.5cm/27.9x19x1.5cm/19.3x28x2.3cm/28x19x4cm/37x19x4.5cm 10. Weight: 0.17kg/0..4kg/0.59kg/0.81kg/1.13kg
