Description
Reviews
| Brand | - |
| Category | Stationery, Educational Electronics & Office Supplies / Pen Ink, Refills & Cartridges |
| Origin | - |
| Brand | HERO |
| Compatible Sizes | 3.4mm and 2.6mm |
| Pack Quantity | 50 Cartridges |
| Ink Color | Classic Black |
| Special Feature | Non-Clogging Formula |
| Compatibility | Magic Eraser Compatible Pens |
| Capacity Type | Large Capacity |
| Target User | Students (Grade 3+) |
| Material | High-Grade Plastic |
| Origin | Official Flagship Store |
Anonymous
Mar 27, 2026
Rating: 5/5
No more clogged pens!
I used to struggle with dried ink blocking my pen nibs, but these HERO cartridges have solved that issue completely. Highly recommended for daily writers.
Anonymous
Mar 21, 2026
Rating: 4/5
Works well with Magic Eraser pens
Specifically bought these because my pen requires compatible ink. They work exactly as described and the large capacity means fewer changes.
Anonymous
Mar 16, 2026
Rating: 4/5
Good quality, fast shipping
The ink color is deep and consistent. I appreciated that they offer both 3.4mm and 2.6mm sizes in one order option, though I only needed the larger size.
Anonymous
Mar 09, 2026
Rating: 5/5
Perfect for my child's school supplies
These cartridges fit perfectly in my daughter's fountain pen. The ink flows smoothly without any skipping, and the bulk pack is great value for money.
Anonymous
Mar 05, 2026
Rating: 5/5
Reliable official store product
Genuine HERO quality. The ink dries quickly on paper without smudging, which is essential for left-handed students like my son.
Anonymous
Mar 04, 2026
Rating: 5/5
Excellent bulk deal
Buying in bulk saves so much time and money. The packaging was secure, and not a single cartridge was leaked or damaged upon arrival.
Q: How many pages can one cartridge write?
A: Writing distance varies based on nib size and writing pressure, but a single large capacity cartridge typically lasts for several weeks of regular school use.
Q: What is the expiration date of the ink?
A: Our ink cartridges have a shelf life of approximately 3 years when stored in a cool, dry place away from direct sunlight. The production batch date is printed on the box.
Q: Is the ink washable if it gets on clothes?
A: While our formula is designed to be smooth and non-clogging, we recommend treating any stains immediately with cold water. For specific stain removal advice, please consult a fabric care guide.
Q: Can I mix these with other brand inks?
A: To prevent clogging or chemical reactions, we strongly advise against mixing different brands of ink within the same pen. Please flush your pen with water before switching to HERO cartridges.
Q: Do these cartridges fit standard international pens?
A: These are designed specifically for HERO pens and compatible models using 3.4mm and 2.6mm connectors. Please check your pen's manual for size compatibility before purchasing.
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