HyperG Gel Roller Pen contains ultra-smooth, high-performance, acid-free gel ink that is check-safe, permanent and smudge-resistant. Design includes a retractable tip, latex-free grip, and diamond-cut barrel with silver barrel accents. Pen is made with a high percentage of recycled material, excluding consumable content and refills. Pen is refillable with KLR refills. Ink is certified AP nontoxic.