Pilot G2 Gel Ink Refill, 3-Pack for Rolling Ball Pens, Fine Point, Black/Blue/Red Inks (77237) G2 gel ink writes 2X longer than the average of branded gel ink pens** (**Independent third party ISO testing. Average of branded gel pens tested.) Fits G2, G2 Limited, G2 Pro, G6, Dr. Grip LTD., Dr. Grip Gel, Precise Gel BeGreen, G-Knock BeGreen, Q7 and B2P Gel Ink pens 3 premium gel ink refills - Black/Blue/Red Smooth writing, smear-proof Gel ink; Fine 0.7mm point Extend the life of your favorite Pilot Gel Ink Pen