3.4mm Fountain Pen Ink Cartridges, Business Fountain Pen Refills (Multicolor)

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Our disposable fountain pen ink cartridges feature a 3.4mm bore diameter, approximately 50mm in length, and a 7mm cartridge diameter, with 5 ml of ink per stick. These cartridges are not Standard Size, so please look size to ensure they work with your fountain pen before purchase.

Enjoy 20 disposable fountain pen ink cartridges in a vibrant array of ten colors: yellow, red, orange, pink, green, blue, light green, brown, purple, and light purple. With ample quantity to support your daily writing needs, these cartridges allow you to mix and match colors for endless creative possibilities. Enhance your notes and artwork with a burst of color, making them ideal for adding flair and personality to your writing tasks.

The fountain pen ink cartridges offer a consistent flow of ink with no breaks or interruptions, allowing your fountain pen to glide effortlessly across the paper. The result is smooth and precise lines that enhance your writing, making it both comfortable and enjoyable.

Compared with the traditional ink bottle, these ink cartridges are more convenient. Skip the mess and save time, without any hassle or cleanup. Travel, signing contracts, and a variety of occasions that need to use pens can be made easier with these easy-to-carry conversion ink tube cartridges.

We've designed these pen ink cartridges to be user-friendly and hassle-free. To install, first, remove the pen cap, pen barrel, and ink absorber. Gently align the thin end of the ink capsule with the bayonet, and then press firmly until you hear a "click" sound. After installing the ink Cartridge in the pen, you can gently shake it to speed up the flow of ink, and then the pen can be used.

The ink is carefully crafted using only natural dyes, giving the composition a neutral, natural, and safe pH. This makes these ink cartridges a safer and more eco-friendly choice compared to traditional ink bottles.

Packing List: 20pcs Fountain Pen Ink Cartridges Product Size: 5x0.7cm/1.96x0.27inch Box Size: 9.8x5.7x1.1cm/3.85x2.24x0.39inch Compatible Fountain Pen: 3.4mm Ink content: 5ml/ per stick Ink Color: pink, blue, brown, yellow, green, purple, orange, red, light green, light purple Material: Plastic

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