Pentel Hyper-G Gel Retractable Roller Ball Pen, Medium Point, 0.70 mm, Black Barrel, Black Ink, 12-Count  (KL257-A) Triple Safe: People-Safe, Check-Safe, and Earth-Safe. Permanent, refillable, water-proof ink. Latex-free grip. Diamond cut barrel and silver accents. Pack of 12 pens