The Edelstein Ink Collection comprises seven brilliant colors with a special ingredient that ensures extra smooth writing and care for the fountain pen. The german word Edelstein translates as gem stone, and each color corresponds to the beautiful coloring of a gem. Every 50 ml high value glass flacon is unique. The rich weight and soft curves make it a pleasure to hold in your hands. It's an ornament on every desk. It is now available in Olivine (green) "Ink of the Year 2018".