The ZIG Letter Pen COCOIRO Refill by Kuretake allows you to refresh your favorite COCOIRO pen body with ease. Featuring a flexible extra fine brush tip, this refill delivers smooth ink flow and expressive line variation—perfect for calligraphy, hand lettering, journaling, and decorative writing. Designed as part of the COCOIRO refillable system, these refills make it easy to switch ink colors or replace a used tip while keeping the elegant pen body you love. Each refill offers consistent performance with precise control, whether you’re writing delicate details or flowing brush strokes. Available Ink Colors Black Royal Blue Sepia Bordeaux Red Blue Black Product Details Brand: Kuretake Series: ZIG Letter Pen COCOIRO Tip Type: Flexible extra fine brush tip Ink Type: Smooth-flowing liquid ink Compatibility: COCOIRO pen bodies Refillable System: Yes Made in: Japan
