Imported from Japan, these delightful inks are a collaboration between the Japanese stationery store TAG and the Kyoto Kusakubi Laboratory. The result of this partnership is a selection of inks formulated with traditional techniques. The Kyo-iro selection are named after ancient Japanese locations while the Kyo no oto are labeled with traditional Japanese color names. Each ink is safe for all makes and models of fountain pens. Each ink is contained in a 40mL glass bottle.