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. Box of 3.
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. Box of 3.