WRITECH Clictek Retractable Fountain Pen Fine Nib with 10 Black Ink Cartridges, 0.5mm Line Size | Smooth Writing for Students & Professionals

• Fine nib black ink, refillable design with W-1784 10 black ink cartrideges, environmental-friendly
• One-handed control, no cap to lose (Please retract the nib after use to keep the ink from drying out)
• Sealing cover for high air-tightness, ink won't dry or leak out. Ergonomic grip zone for comfortable writing experience
• Precise ink regulator to adjust the amount of ink, ensuring clear lines and smooth writing
• A practical choice for beginners, professionals, and stationery lovers alike. Ideal for daily note-taking, journaling, study sessions, office writing, and on-the-go use

• Insert Ink Cartridge — Unscrew the pen barrel from the grip section. Take one black ink cartridge and firmly push it onto the pen's ink intake nozzle until it clicks into place. Ensure it's securely seated to prevent leaks.
• Prime the Nib — Once the cartridge is inserted, gently shake the pen downwards a few times to encourage ink flow. If ink doesn't start flowing immediately, you can lightly touch the nib tip to a piece of scrap paper.
• Write and Retract — Extend the nib by clicking the retractable mechanism. Write as usual. After use, retract the nib by clicking the mechanism again to protect it and prevent ink from drying or leaking. Store the pen tip-up if possible.

Typical situations where WRITECH Clictek Retractable Fountain Pen Fine Nib with 10 Black Ink Cartridges helps — illustrative scenarios, not customer reviews.