Tombow Grayscale Dual Brush Pens
Dual brush pens have a versatile, flexible nylon fiber brush tip on one end and a fine tip on the other end. The resilient nylon brush retains its point. Water-based, non-bleeding ink is blendable. Set includes 9 grayscale pens plus one dual-tip colorless blender. Acid-free. AP Seal, non-toxic.