Rapidograph uses rOtring's unique capillary cartridge and guarantees top reliability.
• Pressure-equalization system including ink helix to get a clean new ink helix every time you change the cartridge
• Thin stainless steel nib for the highest precision ever and a very long usage
• Available in 13 different line widths
To use on a variety of surfaces such as lineboard, tracing paper or vellum drawing paper.