Pilot BLS-G2-7 Gel Ink 0.7 mm Refill

Pilot Gel Ink refill fits amongst other things for: G-2, B2P Gel, G-Knock, G2 Retractable, G-2ex pens. This refill has a 0.7 mm tip and exists in the colors black, blue and red. The black and the blue are only document proof in ISO 27668-2.