The Paper Mate InkJoy system aims to put the joy back in writing with a unique low viscosity ink that flows easily for smooth writing with less drag. It also features a improved nib that delivers clear and crisp lines. With four colours in one pen, the Papermate 4-Colour InkJoy Ball Point Pen is a versatile choice for teachers, editors and other users. It features four smooth sliders at the top of the barrel for easy selection between black, blue, red and green ink. The medium 1mm tip writes a line width of 0.7mm, ideal for general handwriting use. This pack includes 12 pens.