Monteverde Caribbean Blue from Monteverde's standard collection is a bright turquoise blue fountain pen ink with medium shading and pink sheen in large swabs. It dries in 30 seconds in a medium nib on Rhodia paper and has an average flow. Monteverde inks feature ITF, which drastically improves ink-flow quality, extends cap-off time, and lubricates and protects the ink feeding systems from corrosion and clogging.