The PaperMate InkJoy system aims to put the joy back in writing with a unique low viscosity black ink that flows easier for smooth writing with less drag. The PaperMate InkJoy 100 Ballpoint Pen Medium (Pack of 100) also features an improved nib that delivers clear and crisp lines. The InkJoy 100 has a neat triangular shape that provides extra comfort to your fingers and gives precise control for any kind of writing or drawing. The medium 1.0mm nib writes a 0.4mm line width. This value pack contains 100 black pens.