Piston Filler Demonstrator Fountain Pens

Piston filler demonstrators are attractive clear pens that let you fill and empty using a piston device. This keeps your hands clean, and lets you switch inks quickly. They get their name "demonstrator" because they demonstrate the inner workings of a fountain pen.

  • Provide a large ink capacity
  • Crystal clear
  • Piston filling mechanism
  • Dedicated to the large popular drawing nibs 
  • Measures 5.25" uncapped, 5.5" capped
  • You can use other nibs, including most Osmiroid nbs and several Hunt nibs (22B, 56, and 101).