Zebra Z-Grip MAX Roller Ball Retractable Gel Pen, Black Ink, Medium, DozenCheck Safe Ink! Super wide barrel provides exceptional writing control. Extra-large soft rubber grip ensures optimum comfort. Acid-free, archival quality ink prevents skipping and smearing. Retractable tip protects pockets and purses. Point Size: 0.7 mm; Point Type: Medium; Ink Color(s): Black; Pen Type: Roller Ball.