Gel pen Donau 0.5 mm waterproof blue ink, pack of 12

Pack of 12 Donau gel pens with a 0.5 mm tip and waterproof blue ink designed for precise, consistent writing. These gel pens deliver a fine line suitable for everyday handwriting, note-taking, form filling and marking. The waterproof ink resists smudging and exposure to moisture, providing durable legibility for documents and written records used in office, school or field environments.

Advantages

Donau gel pens combine a slim 0.5 mm metal tip with a smooth gel ink formula to ensure steady ink flow and clear, uniform lines. The waterproof blue ink minimizes smearing when pages come into contact with moisture and helps maintain the integrity of signatures and notes. Supplied as a pack of 12, the set offers a reliable supply for regular use and reduces the need for frequent replacements.

Suitable for

• Everyday handwriting and notetaking
• Filling forms and signing documents
• Schoolwork and exam writing
• Office tasks and meeting notes
• Fieldwork where moisture resistance is required

Key specifications

• Ink type: gel, waterproof blue
• Tip size: 0.5 mm (fine point)
• Line quality: fine, consistent flow
• Pack quantity: 12 pens
• Grip and barrel: lightweight plastic barrel designed for everyday handling

How to use

Remove the cap and hold the pen at a comfortable angle to the paper so the 0.5 mm tip makes consistent contact. Apply light, even pressure while writing; the gel ink is formulated to flow smoothly without requiring heavy pressing. Replace the cap after use to prevent the tip from drying out. For best results, use on standard paper and allow a few seconds for the ink to set before stacking or closing pages.

Usage recommendations

Store pens horizontally or with the tip down during prolonged storage to help maintain immediate ink flow. Avoid using on glossy, non-absorbent surfaces where gel ink may take longer to dry. For archival or official documents, perform a quick smear test on a spare sheet to confirm drying time under your specific conditions.