Due to special viscous properties of the ink, pigment-based ink flows smoothly and is waterproof, fade-resistant, and feather-resistant. The ink is viscous while in the barrel, but as it passes through the pen tip during writing, the viscosity drops. This results in smooth ink flow. Immediately after it hits the paper, the ink returns to its viscous state, which prevents feathering. You are left with beautiful clean lines that you can enjoy for a long time!
Price is for a single pen.