• Black Ink: Provides a rich, deep black ink that delivers a crisp and professional appearance for all your writing and correspondence needs.
• Designed for Coroiro Pens: Specifically formulated for use with Zig Letter Pen Coroiro, ensuring compatibility and optimal performance with your existing pen.
• Smooth Flow: Features a high-quality ink formula that ensures smooth, consistent flow, reducing skipping and ensuring a clean, even line with every use.
• Easy Installation: Simple to install into your Zig Letter Pen Coroiro, allowing for quick and hassle-free refills without the need for complex procedures.
• Professional Quality: Ideal for use in professional settings, personal stationery, and creative projects, providing a reliable and elegant writing experience.

The reputation of the Chartpak portfolio for quality and leadership has been a standard within the design, drafting, and engineering industries for over 60 years. While Chartpak products have been used in the fabric of American creativity from the likes of Norman Rockwell to NASA, our brands have humble roots. Nearly all of the brands Chartpak has incorporated into its family have started as passionate ideas of artists and innovators and have grown to become household names, such as Grumbacher, Higgins and Koh-I-Noor With this common thread, Chartpak continues to expand its family of legacy brands.

We don't accept return, but if the product you receive is broken or wrong, we will provide full or partial refund.