The OEM Pilot G6 Gel Pen features smooth-writing gel ink, a retractable design, and a rolling ball tip for effortless writing. It includes a rubber-coated barrel and a contoured finger grip that enhances comfort and control during use. This pen uses an acid-free, archival-safe gel ink formula that is water-resistant, fade-resistant, and smear-proof. It is also refillable with the G2 gel ink refill.