Sailor\’s second Ninja series focus on the weapons used by the Ninja. The Ninja was among the most mysterious figures in Japanese history, and their weapons were just as unique. Katana: This pen has a black body and features a 14K gold nib with black ion plating. The design is inspired by the ninja\’s use of the katana, focusing on a quick, reliable strike to end the battle swiftly. The fountain pen\’s cap screws to open/close and can push to post onto the back of the barrel when writing. The 1911S comes with a Sailor proprietary converter as well as two proprietary Sailor Black ink cartridges. Click here to shop all compatible Sailor ink cartridges.