Van Dieman's Professional Fountain Pen Ink Sample (3mL)Van Diemans Professional is a collection of premium quality fountain pen inks engineered with advanced formulations, exhibiting exceptional lightfastness, permanency and water resistance over and above our standard range of inks, engineered for writers, professionals, and everyday ink enthusiasts who demand reliability, longevity, and effortless performance from their fountain pen inks. Introducing the first in this seriesthe Essential Inksdesigned