Satisfy your EnerGel needs with this refill that provides quality & value. It is equipped with rich, acid-free, & archival safe ink that is non-smearing & 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: Violet; Color Family: Purple.