Faber-Castell Ambition Rhombus Fountain PenThe clean lines and selected materials of these slim writing implements make an excellent impression. They are distinguished by clear cut visual design combined with professional functionalism. The barrel of this Ambition Black Rhombus fountain pen is made of black resin which has been polished to a high gloss and engraved with a laborious guilloche pattern. The end cap and tip are made of highly polished chromed metal. Cap with a spring loaded metal