The Narwhal Schuylkill Chromis Teal Fountain Pen is made of a multi-hued brown and teal resin. Featuring an ink window that allows the user to monitor their ink reserve even when capped, this fountain pen is fitted with a Narwhal in-house stainless steel nib. Available Nib Sizes: Fine, Medium, Broad and Stub The Narwhal Schuylkill Chromis Teal Fountain Pen Details: Piston Filling System Custom-made Resin materials In-House Narwhal Nib Packaged in branded gift box This pen is named after the Schuylkill River (pronounced SKOO-kill) that runs through Philadelphia, keeping with the marine tradition of Narwhal Pens.