The Hahnemühle Signing Pen Duo combines a high-quality pigment liner an dgraphite pencil for your unmistakable signature on matt, satin, and high-gloss paper surfaces.The black fine liner with pure pigment ink is in delible, lightfast, and odourless. The archival and waterproof pigment liner impresses with its fine metal tip and makes even the most detailed signatures possible. It is suitable for satin and high gloss papers.The classic graphite pen is also black and in archival quality. It is ideal for matt and textured paper surfaces.The modern black Hahnemühle SigningPen Duo-Box is ideal for limited editions, unique pieces and artists wh owant to give their work a unique touch.Signing Pen Duo perfectly complements Hahnemühle´s Certificates of Authenticity.