pilot g2 premium refillable & retractable rolling ball gel pens, extra fine point, black ink, 5-pack (31173) pilot the pilot g2 premium gel ink pens offer a smooth writing experience and are the longest writing gel ink pens you can buy. g2 is the ultimate pen for the ultimate overachiever. pilot's g2 writes smoothly, comfortably and has been proven to last longer than the average of competitive gel in brands. pilot g2 is the 1 selling gel ink brand is america. the g2 product line has a variety of point sizes and colors. refills are available for long term use. gel ink pens for the ultimate overachiever. black gel ink proven to last longer than the average of competitive gel ink brands. 0.5 mm extra fine point. transparant barrel with contoured rubber grip for writing comfort and control. retractable & refillable. 5/pack. refill with ink cartridge.