A. Design: This Retractable Fountain Pen features a fine nib which extends and retracts at the touch of the push-button. A tiny door flips open to reveal the nib, and closes securely to protect from damage and prevent the ink from drying out. B. Ergonomic Comfort: The ergonomic grip zones ensure a comfortable, fatigue-free writing experience, even during extended writing sessions. C. Refillable Long-Lasting: Comes with 5 ink cartridges, extending the pen's lifespan for writing. D. Great for Daily Use: Whether jotting down notes, sketching, or journaling, this pen glides effortlessly across the page with even ink flow and smooth lines. With zero ink leakage and a secure cap, it's a practical writing companion for home, school, or the office. E. Includes Compact, Practical Packaging: The stylish transparent box not only keeps your pen safe but also doubles as a practical storage solution to prevent loss. F. Notice: 1. Actual color may be slightly different from the image due to different light effects. 2. Please allow 1-3cm deviation due to manual measurement. G. Casing material: plastic H. Pen tip material: stainless steel I. Specifications: 1 pen, 5 ink cartridges J. Ink supply system: ink cartridges K. Nib material: EF tip L. Package List: 1 Set Fountain Pen