Rollerball pen refill, blue ink. Compatible with Santos-Dumont, R de Cartier, Santos de Cartier large model, Diabolo, Art Déco, Louis Cartier and Trinity rollerball pens.
Ballpoint pen refill, medium point, black ink. Compatible with Santos-Dumont, R de Cartier, Santos de Cartier large model, Diabolo, Santos, Louis Cartier and Trinity ballpoint pens.