Description Pilot Iroshizuku Kosumosu fountain pen ink is a deep, vibrant shade of pink and comes as a 3ml sample in a plastic vial with a dip at the bottom to allow you to easily get every drop, labeled with the name of the ink brand and color. Iroshizuku Kosumosu is inspired by autumn blossoms of the Cosmos flower and the resemblance of the petals to that of cherry blossoms. Made in Japan, each Pilot Iroshizuku ink name derives from the expressions of beautiful Japanese natural landscapes and plants, all of which contribute to the depth of each individual hue. Having trouble deciding between colors? Use our Ink Comparison Tool to quickly and easily view different colors side by side. We offer Free Shipping on all orders over $50 for US customers, and for orders over $250 for our Canadian customers.