Pentel® WOW! Ballpoint Pen, Retractable, Medium 1 mm, Assorted Ink and Barrel Colors, 18/Pack

The triangular-shaped barrel and latex-free grip make the pen easy to hold, while preventing it from rolling away once you set it down. To enjoy smooth-writing, vivid ink, simply click the top plunger to advance the tip. Once you've expressed yourself, just press the side button to retract it.