The Hahnem Signing Pen Duo combines a high-quality pigment liner and graphite pencil for your unmistakable signature on matt, satin, and high-gloss paper surfaces. The black fine liner with pure pigment ink is indelible, lightfast, and odourless. The archival and waterproof pigment liner impresses with its fine metal tip and makes even the most detailed signatures possible. The classic graphite pen is also black and in archival quality. The modern black Hahnem&uumlhle Signing Pen Duo-Box is ideal for limited editions, unique pieces and artists who want to give their work a unique touch.