Pilot Iroshizuku Fountain Pen Ink Cartridges - Set of 6An ink palette in the colours of the Japanese landscape Pilots world famous inks are the fruit of the ancient Japanese art of calligraphy. They contain all the poetry of the landscapes of the Land of the Rising Sun: 12 sublime shades to match your writing to your mood. Iroshizuku ink cartridges make it easy to refill your Pilot fountain pen. The excellent quality shows itself in the even flow of ink and the fact that you can start writing with the