This paint marker features a high-quality Japanese nib with a water-based opaque paint that is similar to acrylic or watercolor, and is permanent when dry. Artists, illustrators and creatives of all kinds will love the smooth, painterly feel of this marker. Dilute your linework with water for watercolor effects, or let dry for smudge-free layering. Details:Available in multiple colors0.5 mmWater based inkSolvent freeCan be diluted with water for watercolor effectExcellent for details and fine lines