Steel, Pvd-coated, Black Ink, Laser Engraving, Push-button Mechanism, Comes In A Presentation Case, Made In Switzerland. Crafted in Caran d'Ache's Geneva workshop, this 'RNX.316' ballpoint pen combines intricate laser engraving with a tough tungsten carbide steel point housing for quality that'll last a lifetime. The replaceable 'Goliath' cartridge will write up to 600 pages of A4 paper, more than enough for the daily to-do list.