Description Platinum Pigmented Blue fountain pen ink is a deep, vibrant shade of blue. The cardboard box contains 10 proprietary ink cartridges that will only fit Platinum fountain pens that accept cartridges. Platinum Pigmented ink is formulated to improve its water-resistant property, light-fastness and heat-resisting qualities. Platinum pigmented inks are suitable for important documents requiring archival qualities, and this ink also has many fine art applications. Many users enjoy using this ink in fountain pens, but additional care may be needed when cleaning. 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.