Description Cross Black fountain pen ink is a deep shade of black and is archival. The container comes packaged with 6 proprietary Cross ink cartridges that will fit into all Cross fountain pens that accept cartridges. Please note that these cartridges will ONLY fit in pens that use Cross proprietary cartridges. 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.