The Sonnet is modern pen design at its best - it"s the quintessential Parker pen and one of their most successful collections ever. Combining timeless contemporary style with a unique choice of perfectly balanced pen sizes diverse modes and high quality finishes the Sonnet writes beautifully feels comfortable and looks sublime. Sonnet the definitive Parker style. Fountain Pen Features: Cartridge/Converter Filling System Black Lacquer Finish Gold Trims