Monteverde USA is proud to have created the world's latest leading European ink treatment formula (ITF).

Enjoy peak performance with ITF which drastically improves ink-flow quality, extends cap-off time, and lubricates and protects the ink feeding systems from corrosion and clogging.

Our inks are available in a variety of vibrant colors.

These are "International Standard Size" ink cartridges and will fit a wide variety of pens.

These will not work in brands that use a proprietary cartridge like, Cross, Parker, Waterman and Pilot to name a few

Measure: 1.5 Inches