Description This Sailor Pro Gear Slim fountain pen shown here in Black with Gold trim has a classic flat-top cap and barrel design, and features a black resin barrel and cap accented by gold-plated trim. The legendary Sailor 14k yellow gold nib is available in several nib sizes, each of which offers an extraordinary writing experience. The cap screws on to close, and the cap will post on the barrel when writing, which helps to make the pen feel almost full-sized in the hand. The Sailor Pro Gear Slim fountain pen includes a proprietary Sailor converter for use with bottled ink, as well as 2 Sailor proprietary cartridges. For the best long-term performance of your Sailor fountain pen, we highly recommend that you use the Sailor Fountain Pen Maintenance Kit for the most efficient way to clean your fountain pen!