Description Each 50ml glass bottle is a beautifully crafted container designed with an innovative dip at the bottom to make for easy filling of your fountain pen, when the ink level runs low. Take-sumi loosely translates from Japanese to Bamboo Charcoal. This ink represents the color of 5 year old bamboo plants burned into charcoal inside an oven. 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.