A set of 12 Purple Conklin fountain pen ink cartridges designed to fit any Conklin pen with a cartridge filling system.

Conklin inks are compatible and safe for use with all types of fountain pens.

Utilizes an Advanced Ink Treatment Formula to achieve:

• Significantly enhanced ink flow.
• Extended duration before cap-off.
• Lubrication and safeguarding of the ink feed system.
• Reduced drying time on paper.