Description This 20ml bottle of Sailor Rikyu-Cha fountain pen ink is smooth-flowing and specifically formulated to be safe for all fountain pens. Sailor Rikyu-Cha is a very deep dark shade of olive green that leans toward brown.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.