Pilot G2 Gel Ink Refill, 2-Pack for Rolling Ball Pens, Fine Point, Black Ink (77240) 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 2 premium gel ink refills - black Smooth writing, smear-proof gel ink; fine 0.7mm Point Extend the life of your favorite pilot gel ink pen