Description 3 Oysters I.COLOR.U Giwa fountain pen ink is a deep, dark shade of charcoal gray that leans toward green. The 3 Oysters I.Color.U 38ml glass bottle features a tilted bottom corner for easier refilling of your fountain pen when the ink level runs low. 3 Oysters fountain pen ink is made in South Korea, and the I.Color.U line of ink colors is inspired by the colors of the Korean capital city of Seoul. 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.