Azabooti

50pcs Fountain Pen Ink Cartridge Refills Bottle Disposable 3.4mm Bore Diameter School Office Stationery Supplies Calligraphy Pen

$10.58

Sale Sold out

Color Red-Not Erasable Blue-Erasable Type Black-Not Erasable Dark Blue-Not erase

Free shipping on orders over $50 — Easy 30-day returns

Azabooti presents 50pcs fountain pen ink cartridge refills for 3.4mm pens, ideal for clean, quick-drying writing. Choose black or blue ink for daily notes, calligraphy, or office tasks.

Refill your fountain pen with ease and cleanliness using our 50 piece 3.4mm ink cartridge set, delivering quick-drying ink without the mess of traditional bottle inks. This cartridge set is designed for pens that accept 3.4mm cartridges, and it is available in classic black or vivid blue ink to suit your writing style from daily notes to bold calligraphy.

Say goodbye to bottle ink spills and cleanup. These cartridges snap into your pen with a simple press, progressing to a secure click that confirms a proper fit. You’ll enjoy a neat, tidy refill experience that keeps your focus on writing rather than cleanup.

What you get

50 pieces of 3.4mm fountain pen ink cartridges
Compatible with pens that use 3.4mm cartridges
Ink colors available in black and blue
Quick-drying ink designed to minimize smudging
Smooth ink flow for clean, even lines
Easy to install — press into your pen until you hear a click

Performance you can trust

Each cartridge delivers a rich, deep color with consistent flow, so your writing appears bold and legible whether you’re drafting notes, journaling, or crafting calligraphy. The quick-drying nature helps keep documents neat and reduces the risk of smudges on important pages. Choose black for formal documents and blue for everyday writing or color-coded notes.

Easy to use and care

Installing is straightforward: simply press the cartridge into a refillable pen until you hear a click, and you’re ready to write. For best results, store cartridges upright and avoid exposing them to extreme heat. Please note the size is not universal; verify that your pen uses 3.4mm cartridges before purchasing. Also, due to variations in display, lighting, and manufacturing, ink color may appear slightly different from the product images. Finally, allow 1-3 cm of measurement tolerance due to manual production.

Whether you’re a student, a professional, or a calligraphy enthusiast, this 50-piece cartridge set helps ensure you never run out of ink at a crucial moment. The 3.4mm bore diameter is designed for pens built to accept this cartridge size, delivering reliable performance with every refill. Your pen will glide across the page with steady ink flow, letting you focus on your words rather than the mechanics of refilling.