Faber-Castell Ondoro Fountain Pen (Graphite) (Medium) Snap-on cap. Stainless steel nib. 5 1/2L x 7/16 diameter; 1.2 oz. Accepts cartridge or convertor; cartridge included. We recommend Levenger bottled ink . <a href="https://www.amazon.com/b?node=14770868011"> International products </a> have <a href="https://www.amazon.com/gp/help/customer/display.html/ref=nav_cs_help?ie=UTF8&nodeId=202045290"> separate terms, </a> are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions. Manufacturer warranty may not apply <a href="https://www.amazon.com/b?node=14770868011">Learn more</a> about Amazon Global Store.