The BIC Cristal Ball Pen Medium Red features medium point tip for smooth and fast writing. For a comfort firm grip, the pen comes with roll-proof hexagon-shaped barrel. These BIC Cristal pens are non-refillable and hence you can use them and throw away once the ink is completely used. Clear barrels in these medium point ball pens help you keep in track of the level of ink supply as you write. These non-refillable ballpoint pens come in a pack of ten.