Kuro Sumi black liner tattoo ink is a must have for the serious tattoo artist. It is voted the best lining ink available on the market and is used by thousands of professionals worldwide. The ink goes into the skin smoothly and evenly for crisp and clean lines that heal flawlessly. Made to the highest of standards using organic and vegan friendly elements. Named after the famous Kuro Sumi Tangnuni Japanese warriors who were considered as an elite force in Japanese history. A must have for any professional looking to push the boundaries in tattooing.