Pentel Retractable Pens Bulk - 16 Total Medium Point Ballpoint Pens Black and Assorted Colors (Red Green Blue Purple) | Ballpoint Pens Bulk. This assorted colors ballpoint pens pack includes 4 packs of Pentel BK 420 Colors Medium Point Retractable ballpoint pens. Perfect to create black medium lines. This set includes 8 black pens and 8 colored pens in red, green, and blue, a total of 16 pens. Retractable tip protects pockets and purses. The pinnacle of pen technology. Prized for their smooth writing, even application, and durability. Soft, latex-free grip. This bulk ballpoint pen set is a great gift option for anyone who loves to draw or as school or office supplies for teachers, students, or professionals.