Kaweco Classic Sport transparent demonstrator fountain pen. A clear demonstrator allows you to see the color of the ink through the body of the pen, as well as the inner workings of the pen itself. Available in extra-fine, fine, medium, broad, or double-broad nibs.
The Kaweco Classic Sport Transparent Demonstrator is a small, pocket-sized fountain pen available with a variety of ink options as well as clips! (Shown with optional clip - not included).