Satisfy your EnerGel® needs with this refill that provides quality and value. It is equipped with rich, acid-free, and archival safe ink that is non-smearing and quick-drying, guaranteeing that your documents will be archived safely. Quick-drying ink is also great for lefties as writing won't smear away with touch. For All EnerGel® Pens. Refill Format: Standard Gel; Refill For Series: Pentel® EnerGel® Retractable Liquid Gel Ink Pens; Refill Ink Color: Black; Color Family: Black.