This stunning Executive fountain pen features black titanium and a titanium gold accent band surrounding a deep, rich, Blue Macaw acrylic. This acrylic also has gem quality diamond chips making it extra vibrant and eye-catching. The nib is a Bock #5 medium nib and is made especially for this model of fountain pen. The cap is non-postable and the nib feed accepts an international fit converter (included) or pre-filled short or long cartridges.