4-color Multi-color Ballpoint Pen, Retractable, Medium 1 Mm, Black/blue/green/red Ink, Blue/white Barrel, 12/boxExpress yourself in vivid color with the dependable and ultra convenient BIC 4 Color Ball Pen. This world renowned multifunction pen lets you choose from four ink colors with a simple click, so there's no need to carry around multiple pens. It's a practical solution that's ideal for color coding, organizing notes, editing others' work and more. Standard ballpoint ink is long lasting, and the pen is refillable.