Description Platinum Platinum Carbon Black fountain pen ink is a rich shade of black that is a pigment-based and waterproof ink that is highly sought after by artists for drawing and lines or washes that 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. Platinum ink is made in Japan and is very popular for its consistent performance. 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.