Kaweco AL Sport Piston Navy and Gold Fountain PenAL SPORT Navy Pen from Kaweco The Piston Sport AL series becomes colorful. The navy blue anodized surface of the aluminum body harmonizes perfectly with the golden elements and gives the writing instrument a particularly elegant character. The fountain pen is available with a golden plated steel nib in fine and medium width. The 190 nib unit can also be easily replaced afterwards. Like the black piston filler version, you can choose from a Starter Set