The Classic line by Graf von Faber-Castell are available in high quality wooden bodies, platinum plated or made completely out of 925 sterling silver. These precious materials are extremely durable and high quality making them a truly unique writing instrument. Each piece comes with platinum plated fittings and a finely ribbed barrel. Each two-tone nib is 18k gold with an iridium tip and are hand made and tested. The pen takes standard international cartridges/converters.