The M21 is a refill suitable for any multi-functional pen (multipen) from the Lamy brand collection and the Lamy Spirit ballpoint pen. It has a steel tip and a metal casing.

Available versions:

• Lamy M21 Pen cartridge green, Lamy M21 Pen cartridge black, Lamy M21 Pen cartridge blue, Lamy M21 Pen cartridge red