With four colours in one pen the bic 4 colour ballpoint 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 chunky blue barrel provides a firm grip for comfort and control this medium format pen features a 1mm tip for a line width of 04mm ideal for general handwriting use this pack includes 12 pens features ballpoint pen with four colours in one choose b