Andibro 10 Colors 3.4mm Fountain Pen Ink Cartridges, 20 Packs Business Fountain Pen Refills Disposable Ink Pen Refills (Multicolor)

Product description

• Compatible 3.4mm Size 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. for effortless replacement These cartridges are not Standard Size, please look size to ensure they work with your fountain pen before purchase!
• Multicolor Fountain Pen Ink 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.
• Smooth Ink Flow 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.
• Convenient Than Ink Bottle The ink is carefully crafted using only natural dyes, giving the composition a neutral, natural, and safe pH. Compared with the traditional ink bottle, 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 carry these easy-to-carry conversion ink tube Cartridge fillers
• How to Install We've designed these pen ink cartridges to be user-friendly and hassle-free. Remove the pen cap remove the pen cap, pen barrel, and ink absorber Install the ink cartridge Gently align the thin end of the ink capsule with the bayonet, and then press firmly until you hear a "click" sound. Confirm that the ink cartridge is installed 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.