INK CARTRIDGES ROYAL BLUE – 6 PCS (Standard Size)

INK CARTRIDGES ROYAL BLUE – 6 Pieces (International Standard Format)

High-quality royal blue ink cartridges designed for smooth, clean, and consistent writing. These cartridges are international standard size, making them compatible with most standard fountain pens and ink cartridge rollerballs.

Perfect for school students, office use, and daily writing needs.

✨ Features:

• Royal Blue (Königsblau) vibrant ink
• 6 cartridges per box
• International standard format
• Smooth and consistent ink flow
• Erasable royal blue ink
• Ideal for pupils and students
• Made with German quality standards

🖊 Suitable For:

Compatible with most international standard fountain pens including:
ONLINE, Pelikan, Faber-Castell, Stabilo, Schneider, Herlitz, Kaweco

❌ Not Suitable For:

Lamy, Parker, Waterman (proprietary cartridge systems)

6. Usage Instructions

1. Unscrew the fountain pen barrel.
2. Insert the cartridge firmly into the grip section.
3. Push gently until you feel a click (seal breaks).
4. Reassemble the pen.
5. Allow a few seconds for ink to flow before writing.

7. Fixing / Installation Method

• Always insert the small sealed end into the pen section.
• Apply gentle pressure to pierce the seal.
• If ink does not flow immediately, keep the pen nib downward for 1–2 minutes.
• Avoid squeezing the cartridge.