Retractable Fountaining Pen Dependable, convenient design: Sleek, retractable pen body with smooth one-handed operation. The high-airtight seal prevents ink from drying or leaking when the tip is retracted, so the pen is ready to write and stores cleanly. Consistent, professional lines: An advanced ink regulator delivers uniform lines and steady ink distribution, ideal for signatures, notes, and everyday writing that requires reliable stroke quality. Ready to use and long-lasting: Includes five blue ink cartridges to support extended use without immediate refills, maintaining consistent performance and safe, mess-free replacement. Comfortable for long sessions: Ergonomic grip area reduces hand fatigue and improves control during extended writing or training, making sustained writing more comfortable and precise. Practical performance: Retractable mechanism plus the airtight sealing and ink regulation combine to reduce interruptions from ink issues and provide reliable daily performance. Use scenarios: Signing contracts and official documents where even, clear lines and a leak-free pen are essential. Note-taking in meetings or classes where quick retraction and reliable ink flow save time. Extended writing sessions such as drafting, journaling, or study where comfort and consistent ink flow reduce fatigue and rework. Key attributes: Function: Retractable pen with advanced ink regulator and high-airtight sealing Included supplies: Five blue ink cartridges for extended use Performance: Uniform line quality, steady ink distribution, leak- and dry-resistant when retracted Ergonomics: Contoured grip for reduced hand fatigue and improved control This pen is built to provide dependable, consistent writing performance for everyday and professional use without special maintenance.