**Feature** Smooth stainless steel cap and barrel with matching stainless steel trim Stainless steel Medium nib Fountain pen uses the Cartridge or converter nib The Parker VECTOR's characteristics of practicality， style and robustness make it the ideal writing instrument for students and professionals. Vector is the simplest， hard working Parker tool. Vector is an essential that you can really take for granted， as it has Parker craftsmanship， guaranteed. Cap action with refill fitted. Cap on or cap off roller ball with refill fitted