BiC M10 Clic Medium 1.0mm Ball Pen Box of 50 - Black Product Features Practical one-piece pen Retractable side button for ease of use Resistant and perfectly spherical ball in the tip Quality ink Clear section to show ink supply Product Description The BIC Clic Medium 1.0mm ball pen has an all-in-one design, meaning it is useful for environments that require easy to use pens. There's minimal risk of leakage and no removable lid so the entire pen can be stored in one place such as the owner's pocket or clip board. The barrel is colour coded to match the pen's ink, and is clear towards the point to help its user know exactly how much ink is left, when a pen is needed in a high-pressure environment.