Each glass bottle contains 50 ml of Rohrer & Klingner fountain pen ink.
Rohrer & Klingner has continued an old tradition of ink production since 1907. These inks have been developed over the years for the primary purpose of calligraphy, and are still hand made with modern raw materials.
Rohrer & Klingner inks feature brilliant colorants, specially treated water and minimal amounts of additives for a well balanced composition that results in beautiful writing. These inks are suitable for fountain and dip pens, quills and other calligraphy utensils.
The colors of the iron gall inks will intensify with oxidization (as it dries and is exposed to surrounding air), and these inks are considered permanent on paper and archival safe.