where a regular pen would barely show up at all

it's waterproof

High pressure in combination with the Loop soft valve makes it perfect for broad and thin strokes

The Sakura Pigma Micron is a technical fineliner built around Sakura's archival Pigma pigment ink rather than a standard water-soluble dye

or pour into squeezers and empty markers when you need it

sakura koi coloring brush pen Idwrap where a regular pen wouldThe Sakura Koi Coloring Brush Pen uses a flexible polyacetal brush tip designed to behave like an actual paintbrush rather than a typical felt marker tip it bends under pressure and bounces back to a fine point as soon as you lift off, so you can move between thin detail lines and broad sweeping strokes without switching pens. Pressure controls the width, from a fine 0. 5 mm line up to a 4. 0 mm wash. The ink is a water based, solvent free dye built