Rohrer & Klingner Sketchink ink, 50 ml, manufacturer: Rohrer & Klingner Rohrer & Klinger sketchink, 50 ml, usable inks for fountain pen, nib or brush. Waterproof drying, they are ideal companions for urban sketchers, designers, graphic artists and architects. Last but not least, the humorous label design make this ink an eye-catcher. Smallest pigments for optimal ink flow, especially when drawing fine lines. Dry and paintable after a short time. Can be painted over in the surface with water for brilliant highlights. Since it is waterproof, it can happen that the fountain pen dries once. For this purpose, the R&K Rreiniger er (see right) 50 ml bottle