The Pentel® Wow! retractable ballpoint pen offers a distinctive design that stands out in a crowd. Unique triangular-shaped barrel and latex-free grip is easy to hold and keep it from rolling off desks. Click top to advance the tip; click side button to retract. 1.0mm metal tip writes medium lines. Pen Type: Ballpoint Pen; Pen Style: Retractable; Refillable: Nonrefillable; Visible Ink Supply: Yes.