Uniball Rollerball Pen Blue Fine UB-177

Water Resistant:Dyestuff Ink particle is easily soluble in water and will bleed on the paper, uni super ink – pigmented ink will bond itself to the paper fibers once it is settled, it is not soluble in water.Light Resistant: The size of uni super ink particle is larger than dyestuff Ink. Therefore its surface is less affected and the colour remains vivid.Time Resistant: Difference between structure of molecules. Molecules of dye ink break down because of the sunlight and air but uni Super ink is difficult to break down.Comfortable Grip: Advance grip that fits comfortably in your hand for ultra-fine precision and fatigue-free writing.This allows the user to write in a more flexible position.Durable Needle Tip: Produces a thin and precise line. Features a durable pressure-resistant tip that won't bend or break even under strong pen pressure.