Pilot G2 Gel Refill, Extra Fine Point, 0.5mm, Black Ink, Pack of 2 Refills - Pilot G2 is the ultimate pen for the everyday over achiever. Pilot's G2 writes smoothly, comfortably, has been proven to last longer than the average of competitive gel ink brands, and is the #1 Selling gel ink brand in America (NPD, 2021). Ensure your favorite pen doesn't run out of ink by using this refill pack.