Features: Permanent and smear-proof pigment ink. Resistant to fading caused by light and does not bleed through water. Mechanism: Cap type Ink color: Black Ball diameter: 0.02 inches (0.5 mm) Refillable with UMR-5 Size: Shaft Diameter φ0.4 x Thickness 0.6 x Total Length 5.9 inches (11.5 x 15.0 x 151.0 mm) Weight: 0.4 oz (11.7 g)
Pigment Ink Pigment ink is water and lightfast so it won't bleed through the water, and the drawing line will not fade and leaves vivid drawings. Water-resistant: Pigments are a material that does not dissolve in water, so they will not lose their drawings even if they are bent out. Lightfastness: Pigments are resistant to UV rays and other irritations caused by dyes, and are resistant to fading.
