Tombow Dual Brush Pen Art Markers, Grunge, 10-Pack Set of 9 colors and 1 blender pen, with flexible brush tip and fine tip in one marker 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