The multiple segments, separated by fine rose gold rings, give this series its name: Anello is Italian for ring. Hand-made bicolored 18-carat gold nib with iridium tip, run in by hand. Barrel made of black precious resin. Rose gold plated trim and cap. Manufacturing process involves over a hundred steps, most of them carried out by hand. Cartridge/Converter system: All fountain pens come equipped with a converter. The clip is equipped with a spring to help it movements.