BiC Cristal Original 1.0 mm Ball Pen Pack of 50 The world-renowned classic medium 1.0mm tip refillable ballpoint pen in hexagonal shape; still a familiar and comfortable friend Tungsten carbide ball ensures smooth flow of BIC ink for writing with confidence and consistency, when making presentations or notes BIC ink cartridges last up to 2 times longer than other ball pens, so you can write quite a few office documents before it runs out Ballpoint pens with green ink, perfect for editing work, making notes or highlighting important dates when working in the office Simple, everyday ballpoint pen sold as a box of 50 - perfect for jotting, scribbling, noting, drawing, doodling or sketching