Product: 100 Pieces Blue Black Pen Ink Cartridge Fountain Pen Cartridges Refillable Fountain Pen Cartridge, 3.4 mm Bore Diameter
Brand: Outus
Color: Black

Features: 
 
Smooth writing experience: 
The ink cartridge contains good ink in blue and black, ensure you a smooth and unimpeded writing experience as your fountain pen glides elegantly across paper, not easy to block the ink holes and leak, a good assistant in your life. 
 
Quick to dry: 
With quick drying ink, you can no longer worry about the words you just wrote will be rubbed off or dirty your hands and clothes after a few seconds, ensuring your important writing moments are not ruined by smudges or smears 
 
Specifications: 
Size: approx. 2.1 inch/ 5.2 cm long 
Color: black and blue 
Quantity: 100 pieces 
 
Package includes: 
50 x Black ink cartridge 
50 x Blue ink cartridge 
 
Notice： 
Due to the large number of products, please check carefully 
Please note that the fountain pen's name have been mentioned above solely for purposes of demonstrating compatibility, not for trademark using. 
Size may exist slight errors due to manual measurements.
Note: this product is not suitable for all fountain pens, the size of the product is not the standard size, please measure the size of your fountain pen correctly before purchase and make sure that your fountain pen has 3.4 mm ink cartridge installed; To avoid soiling your clothes, use the correct installation method
Size information: cartridge diameter is about 3.4 mm, length is about 2.1 inch/ 5.2 cm, size is suitable for fixed size pen, please confirm that the product diameter is consistent with the diameter of the interface on your pen before purchase
Quick to dry: with quick drying ink, you can no longer worry about the words you just wrote will be rubbed off or dirt your hands and clothes after a few seconds, ensuring your important writing moments are not ruined by smudges or smears
Smooth writing experience: the ink cartridge contains good ink in blue and black, ensure you a smooth and unimpeded writing experience as your fountain pen glides elegantly across paper, not easy to block the ink holes and leak, a good assistant in your life
What you get: you can get 50 pieces blue ink cartridges and 50 pieces black ink cartridges, definitely enough quantity for you to use and replace, you can also share with classmates, colleagues, friends, families and more.If you have any questions, please contact our staff and they will be happy to help you solve them

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