Tombow 56167 Dual Brush Pen Art Markers, Primary, 10-Pack. Blendable, Brush and Fine Tip Markers Ideal for fine art, brush lettering, faux calligraphy, illustrations, water color illustrations, journaling and more! Durable nylon brush tip can create fine, medium or bold strokes Fine tip gives consistent lines Included colorless blender pen softens and blends colors, creating a watercolor effect The water-based ink is non-toxic, blend able, non-bleeding, and odorless Tips self-clean after blending Ideal for professional fine art and crafts