Duke Fountain Pen with Ruby Cap on the Top , Fine Nib 0.5 mm - Wine Red The fountain pens nib : fine nib ( about 0.5 mm ) / Cap : Push Type / Pen Material: Metal Ink : work with bottle ink and standard cartridges ( such as this ASIN : B01FJAAEUQ ) . Length(Approx): 136 mm ; Weight(Approx): 28 g ; Diameter: 11 mm Package : 1 x fountain pen and 1 x refills converter for bottle ink / Please Note : The fountain pen Not included ink cartridges . If any problems caused , please don't hesitate to contact us, we will try our best to help you solve the problems .