Description Pilot Iroshizuku Ku-jaku fountain pen ink is a deep, vibrant shade of teal green that is inspired by the stark and vivid feathers of the richly multicolored peacock. Pilot Iroshizuku inks are known to be smooth flowing and well behaved, and the 50ml glass bottle is cleverly designed with an innovative dip at the bottom to make for easy filling of your fountain pen, when the ink level runs low. 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. Want to know more about this color? Check out our thINKthursday blog post for more info! 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.