Diamine Sunset Ink Bottle - 80 mlDiamine Co has been producing immense range of quality fountain pen ink in the world - in both traditional and contemporary shades since 1864. Diamine Co. has been providing probably the largest range of fountain pen ink with different colors. It also manufactures Calligraphy/ Drawing Ink & Stamp Pads and is still in market today with its traditional method. Diamine Ink is water based ink that has been the first preference for many pen freaks. The excellent quality of ink goes along with all kind of brands.