Description
Reviews
| Brand | - |
| Category | Stationery, Educational Electronics & Office Supplies / Pen Ink, Refills & Cartridges |
| Origin | - |
| Ink Colors | Pure Blue, Black, Red |
| Cartridge Diameter | 3.4mm |
| Compatibility | Universal fit for most standard fountain pens |
| Package Quantity | 30 cartridges per pack (10 of each color) |
| Material | High-grade plastic with sealed foil cap |
| Target Audience | Elementary school students and calligraphy beginners |
| Ink Type | Water-based, non-toxic dye ink |
| Portability | Compact design for easy storage in pencil cases |
| Leak Protection | Double-sealed ends to prevent drying and leaking |
| Usage Scenario | Daily writing, homework, and artistic sketching |
Anonymous
Mar 23, 2026
Rating: 5/5
Perfect for my daughter's school supplies
These cartridges fit perfectly into her beginner fountain pen. The colors are vibrant, especially the blue, and they don't leak in her backpack. Great value for the price.
Anonymous
Mar 15, 2026
Rating: 5/5
No more mess!
Switching from bottled ink to these cartridges has saved me so much cleanup time. They are easy to swap out, and the seal keeps them fresh until I need them.
Anonymous
Mar 11, 2026
Rating: 5/5
Excellent bulk pack
Buying in bulk is much cheaper than buying small packs at the stationery store. The quality is consistent across all three colors. Highly recommend for teachers.
Anonymous
Mar 10, 2026
Rating: 4/5
Good universal fit
I was worried these wouldn't fit my vintage pen, but the 3.4mm size worked flawlessly. The black ink flows smoothly. Only giving 4 stars because the red is slightly lighter than expected.
Anonymous
Mar 10, 2026
Rating: 5/5
Great for travel
I keep a few of these in my laptop bag for meetings. They are lightweight, durable, and the caps stay secure. The pure blue is my favorite shade.
Anonymous
Mar 09, 2026
Rating: 3/5
Decent but runs out quickly
The ink quality is fine for everyday writing, but I feel like I go through them faster than branded cartridges. Still, for the price, it's a fair trade-off.
Q: Can I mix colors in the same pen?
A: We recommend flushing the pen with water before switching colors to prevent mixing and potential clogging. While you can switch them, mixing inside the feed is not advised.
Q: Are these cartridges refillable?
A: No, these are designed as single-use disposable cartridges. For reusable options, please check our section on ink converters.
Q: Will these fit a Lamy Safari fountain pen?
A: Yes, the Lamy Safari uses standard European 3.4mm cartridges, so these will fit perfectly.
Q: Is the ink waterproof?
A: No, this is water-based dye ink designed for smooth writing and easy cleaning. It is not waterproof and may smear if exposed to water.
Q: How long do the cartridges last once opened?
A: Once inserted into a pen, a single cartridge typically lasts for 2-3 weeks of daily writing, depending on your writing style and nib size.
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