Description These universal fountain pen ink are designed to fit a wide range of fountain pens, making them an ideal choice for students. The ink flows smoothly, ensuring a consistent writing experience. The ink are easy to replace, allowing for quick refills, suitable for busy school environments. Features -Color:Assorted Color -Material:Plastic -Size: 5.00X0.70X0.70cm/1.97X0.28X0.28in -Note: 3.4mm caliber ink cartridge -Compatibility: designed for fountain pens, ensuring a suitable fit for your writing instrument -Easy replacement: these ink are simple to replace, making them convenient for everyday use -Smooth writing: the fountain pen ink flows smoothly, preventing clogs and leaks, making it a reliable tool for daily tasks -Versatile use: ideal for students, office workers, home use, and meetings, catering to various writing needs -Suitable for all levels: suitable for both beginners and experienced writers, enhancing the writing experience for everyonePackage list: 10 x box Fountain Pen Ink (100pcs)