Lanxivi Jinhao Century Fashion Tiger Eye Color Black Line Celluloid Fountain Pen 18kgp Medium Nib with Pen Pouch Length : 135 mm Converter Screw type ; Cap : Screw -Type Ink cartridge : international standard ( work with the lanxivi cartridges in our store ) Pen Weight : 40G, Nib : Stainless Steel Fine ,Diameter 12.5mm Package : One pen & one lanxivi pen pouch as picture shown