The pigment brush pen 371 is STAEDTLER's India ink brush pen, built around Multi Ink — a water-based translucent India ink made with high-quality pigments. This is the thirty-six-pen set. What separates it from an ordinary brush pen is lightfastness: each colour is classified on the blue wool and grey scales, and work does not shift or fade after years in the light. The ink is permanent and waterproof, so it can be overpainted without smudging, and the stable brush nib gives genuinely variable line widths.

• Premium India ink pen with brush tip, using STAEDTLER Multi Ink
• Water-based translucent India ink with high-quality pigments
• Extreme lightfastness — no colour change or fading after years of light exposure
• Lightfastness classified per colour on the blue wool and grey scales
• Permanent and waterproof; smudge-free overpainting once dry
• Easily controllable, stable brush nib for variable line widths
• Housing made of 97% recycled plastic