Platinum Cool Fountain Pen, Medium Point, Crystal Clear Barrel, Black Ink (PLAT-PGB-3000A-05-M) Stainless steel medium nib; clear demonstrator fountain pen Takes both standard and international ink cartridges as well as bottled ink Starter international ink cartridge are included Measurement: closed 5 1/2"; posted: 6"; weight of 0.6 oz Item product number is PGB-3000A.