With four colours in one pen, the Bic 4 Colours Pro Retractable Ballpoint Pen (Pack of 12) is a versatile choice for teachers, editors and other professional users. It features four smooth sliders at the top of the barrel for easy selection between black, blue, red and green ink. The chunky black barrel provides a firm grip for comfort and control. This medium pen features a 1mm tip for a line width of 0.4mm, ideal for general handwriting use. This pack includes 12 pens.