The Stipula La Ventiude 22 fountain pen is carefully crafted to enhance the appeal and ensure your writing experience is sophisticated. This fountain pen uses a piston-filling mechanism and is provided with a transparent ink window to allow you to see the ink level at all times. The back end of the barrel houses the piston knob. The fountain pen is fitted with a chromium steel nib. The La Ventidue 22 fountain pen is available in varying colors: Nero Di Marte, Notturno, Tartarugato, Bordolese, and Avorio. The Stipula La Ventidue fountain pen is available in varying nib sizes, with the Flex nib option referring to Stipula's V-Flex fountain pen nib.