Description A 60ml glass bottle of Platinum Carbon Black fountain pen ink. Platinum Carbon Black fountain pen ink is a rich shade of black. Comes with integrated ink reservoir. A pigment-based, waterproof carbon ink that is highly sought after by artists for drawing and lines or washes. 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.