Red Ink for Ball Pen is especially formulated for fine tips. The Red Ink has deep colour, is featured with instant starting, very less gooping, excellent smoothness and ensures no static leakage. The Red Ink has a pH level of 7.5 ± 0.5 and 1.102 ± 0.005 specific gravity. Red Ink for Ball Pen that comes under F-Series and HT-555 model has good wear resistance and is suitable for photocopy.