Ink Cartridges

Ink cartridges come in all sizes and formats - from highly compatible "International" cartridges (short and long), to proprietary ink cartridges that only fit a specific brand or subset of pens, you'll find them all here.

What makes ink cartridges useful (over converters) is that they are sealed, travel well, and keep your fingers reasonably clean. Most of them are also refillable, with a bit of effort and a blunt-tipped syringe.