Jinhao Blue Black Fountain Pen Ink Cartridges Refills – 2.6mm Bore Diameter, 80 Pcs Disposable Ink Cartridges for Jinhao Pens, Ideal for School & Office UseSmooth, Deep Blue Black Ink: Provides a professional, smudge free writing experience with rich, bold color for everyday writing, journaling, and note taking. Universal Compatibility: 2. 6mm bore diameter fits Jinhao, Baoer, and other standard fountain pens, ensuring a seamless refill experience. Convenient & Portable: Compact (5cm 1. 97in) pen shaped cartridges are easy to carry, store, and refill, making them ideal for on the go use. Large Supply for

Ensures optimal ink flow and prevents leaks and spills

✅ Durable Spiral Tip DesignSpiral-style refill ensures a snug and secure fit

Versatile Use: Ideal for office work

and pen collectors

and versatile medium nib options

making it ideal for testing new ink colors

Durable Construction: Plastic cartridges securely hold ink

this pen is perfect for both everyday writing tasks and creative projects

making it perfect for both students and professionals

✔ Comfortable Grip – Ergonomically designed for smooth

Versatile Application: Perfect for writing

creating a sophisticated and timeless appearance