G2 Pens 31277 Black Pilot G2 Ultra-fine 0.38mm Gel Ink Pens, 1 Dozen Plus 2 Packs 0.38mm Ultra Fine Black Gel Ink Refills Pilot G2 0.38, Black Ink, 1 Dz 31277 Pens With 2 Packs of 77287 Refills. Refills are packed 2 refills per pack. G2 0.38 Ultra Fine Black Gel Ink Retractable Rolling Ball Pen offers water-resistant, smearproof gel ink for exceedingly smooth writing. Contoured rubber grip provides writing comfort Grip is latex-free.