Schrade Tactical Pen Black - Fountain and Roller Ball Pen. 5-7/8" overall. Silver Aircraft aluminum body. New Tactical Pen with interchangeable fountain or rollerball writing instruments. Pens include German made generic fountain fine point rib with white face etched Iridium point, utilizing European standard 38mm ink cartridge. Interchangeable German made Schmidt ceramic non-dry rollerball black in cartridge.