Caran d'Ache Chromatics Fountain Pen Ink Sample (3mL)The exquisite range of Chromatics inks from Caran d'Ache are almost as beautiful to look at as they are to write with. The clever design of the packaging means that when the bottle is upright in the base of the box, the slanted base of the bottle acts as an inkwell so that you can get right to the bottom of the bottle! 3mL ink samples contained in a plastic vial with an o ring to ensure a proper seal.