Patented, advanced liquid ink technology formulation offers a consistent, smooth flowing write. Delivers quick-drying, water-resistant and smear-free results. Premium quality performance is assured with Pilot®. For Q7, G2 Limited, G2 Pro, Precise Gel BeGreen, Dr Grip LTD and Dr Grip Pens. Refill Format: Standard Gel; Refill For Series: Pilot® Dr Grip® Gel Pens, Dr Grip® LTD Gel Pens, G2 Limited Gel Pens, G2 Pro Gel Pens, Precise Gel BeGreen® Pens, Q7 Gel Pens; Refill Ink Color: Black; Color Family: Black.