Jinhao Century Fashion Fountain Pen Blue Celluloid 18kgp Medium Nib Point Brand name : Jinhao Length : 135 mm ; Nib : 18KGP Medium ,Diaeter 12.5mm Converter Screw type ; Cap : Push-Type Ink cartridge : international standard ; Pen Weight : 40G Package : One pen & one removable converter (work with all bottle ink )