Kuretake Zig Letter Pen COCOIRO Refillable Marking Flexible Extra Fine Black Made in Japan Royal Pen, Tip, Ink, (Refill, Blue)

"COCOIRO" comes from the combination of the Japanese words for "heart" (COCORO) and "color" (IRO). This letter pen features a flexible, semi-hard nib that produces precise, sharp lines. [Brush Tip] The flexible brush tip is ideal for drawing lines of varying widths. By alternating the pressure and position of the pen, the stroke difference with speed is approximately 0.2-1.0mm. This type of pen is delicate yet suitable for everyday writing, decoration, hand lettering, modern calligraphy and illustration. [Ink Cartridge] This pen is refillable, so you can continue to use the pen body and refill it as needed. COCOIRO is designed so that you can customize the body, ink, and tip to match your style and "color of your heart." "COCOIRO" comes from the combination of the Japanese words for "heart" (COCORO) and "color" (IRO). This letter pen features a flexible, semi-hard nib that produces precise, sharp lines.