Description ilot Iroshizuku Hotaru-bi fountain pen ink is a bright shade of warm yellow-green, 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 Hotaru-bi is inspired by the light of delicate fireflies in summer. 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 $59 for US customers, and for orders over $250 for our Canadian customers.