Edding 1800 Profipen Pigment Liner Drawing Pen - 0.1mm - [Set of 4 - Black, Blue, Red, and Green] The Edding 1800 Profipen Fineliner is a high-tech fiber pen, ideal for illustrators, designers, architects, and cartographers alike. Features a strong metal encased tip, perfect for use with rulers and stencils. Features Edding's lightfast and waterproof pigment ink. PP barrel guarentees a long service life. Each set contains four 0.1mm Pigment Liners in the following colours: 1 x Black, 1 x Blue, 1 x Red, and 1 x Green.