Derwent Graphik Line Maker pens are fineliners which can be used for drawing, sketching, illustration or design. This pack contains 6 pens with the following nib sizes: 0.05mm, 0.1mm, 0.2mm, 0.3mm, 0.5mm and 0.8mm. Derwent Graphik Line Maker pens use high-quality, water-based, lightfast pigment ink which is quick drying and produces rich, opaque black lines. The Super Japan nibs provide a consistent flow of ink while also offering good coverage and remaining light to handle, eliminating any scratching and producing smooth lines. Use the different nib sizes together to add depth and tone to your drawings with these pens that work just like graphic pencils.