Bic 4 Colours 3 Pack Ball Point Retractable Biro Pens Red Black Green & Blue Bic 4 Colours 3 Pack Ball Point Retractable Biro Pens Red Black Green & Blue 4 colours in 1 pen! At the click of a colour coded button you select the colour you want- blue, black, red or green. Quality ink, quick drying & smooth writing. Why carry four pens when you can have it all in one? It's also refillable so great for the environment too.