AERO COLOR® Professional LINER as empty pens are perfect to create outlines with different thickness and signatures in brilliant, lightfast AERO COLOR® Professional colours. They are also very popular for drawing techniques and especially for (urban) sketching. The empty pens can be filled easily with all 36 standard colour shades and 12 colours TOTAL COVER. Schmincke offers the empty LINER with different line widths as well as replacement tips for each pen.
