LAMY Giant Ink Cartridge T10
The T10 is Lamy’s proprietary fountain pen refill. These cartridges has bean Lamy’s design for over 30 years and work with almost all Lamy pens, aside from the Lamy 2000. It has a 1.15 ml capacity and is made out of a hard plastic.
The T10 cartridge is generally sold in 5-packs, with the common colors being black, blue, dark blue, red, green, turquoise, and violet.