Standard refill for any refillable EnerGel pen, including models: BL407; BL77; BL107; BL117; BL57; and BL37 High performance ink technology combines the best qualities of liquid and gel ink for a ...
G2 Refills: Enables you to continue ... Pilot's line of innovative writing tools, including gel ink, erasable, rolling ball, ballpoint and fountain pens, & dry erase markers & more ...
There is no arguing that ballpoint pens are more convenient than fountain pens – the ink cartridges last for years, they’re unlikely to leak, and they are capable of writing on more surfaces.