Delivers quick-drying, water-resistant and smear-free results. Patented, advanced liquid ink technology formulation offers a consistent, smooth flowing write. Trust Pilot for premium quality performance. Manufacturer's unconditional warranty. Quick-drying, water-resistant and smear-free. Patented, advanced liquid ink technology. Premium quality performance. Pen Refill Type : Roller Ball Special Ink Type : Gel Refill For Series : G2, G2 Limited, G2 Pro, G6, Dr. Grip ltd., Dr. Grip G4, Q7, B2P BeGreen, G-Knock BeGreen, Precise BeGreen Gel Roller Balls Tip Type : Conical Point Type : Extra Fine