Tombow's Dual Brush Pen Set arrives in a pack of 10 different colors, all of which are designed for the purposes of portrait drawing. The pens are versatile with the flexible brush rip made from nylon materials, creating thick and bold strokes as well as thin and medium strokes based on the amount of pressure applied.
Notably, the pens are fueled with water-based ink to ensure that it blends seamlessly to create the desired color for creative purposes. It is acid-free, non-toxic, odorless, and non-bleeding. Additionally, the pen tips are self-cleaning after blending together with other hues to refrain from any messes. The Tombow set can be used for coloring, journaling, drawing, rubber stamping, and hand-lettering.