1. Switzerland imported refill: smooth writing and smear-proof, retractable and refillable 2. Japan imported ink: smooth, rich black ink for effortlessly strong impression 3. 0.5mm fine point draws razor-sharp, consistent lines 4. 9.5mm contoured grip for superior comfort and control 5. Handy retractable and rotatable design, convenient to use 6. Shell material: PC + ABS 7. Dimensions: 143x9.5 mm 8. Weight: 19.85 g 9. Write diameter: 0.5 mm