The Pentel™ Oh! Gel retractable gel pen features acid-free, permanent gel ink that delivers a memorably smooth writing experience. The latex-free grip provides extended comfort and control. Carbon fiber look gives this pen unique appeal. 0.7mm metal tip writes medium lines. Pen Sub-Brand & Product Family: Oh! Gel®; Pen Type: Gel Pen; Pen Style: Retractable; Pen Tip Type: Conical.