Ohto Fountain Pen Refill Cartridge FCR-6 (Blue Black) 6 cartridges &times; 2 Packs, Total 12 cartridges (Japan Import) [Komainu-Dou Original Package] Cartridge ink for Ohto fountain pens (Dude FF-15DD, Poche FF-15P, Majestic FF-20MJ, F-Lapa FF-10NB, Tasche FF-10T, Proud FF-15F) Total 12 cartridges Ink color: Blue Black