The Parker Sonnet Pioneers Collection Arrow GT fountain pen has a stainless steel barrel with a glossy grey lacquer finish. The cap features the iconic "arrow" pattern created by chemical etching. Combined with accessories plated with 23-carat gold. Nib in 18-carat gold (fineness Au 750/1000) with decorative engraving. The timeless elegance of the pen Sonnet, its refined style and varied finishes perfectly follow the Parker design tradition. Sonnet it is the perfect embodiment of everything Parker does best - the masterful craftsmanship of the 18K gold nib, the ideal weight distribution of the pen and the careful assembly of the 17 different parts. The Sonnet range is truly timeless yet always up to date. The Parker Pioneers collection celebrates the pioneering spirit of George Parker, who founded the Parker Pen Company when he was just 25 years old, while the collection is a tribute to the individuals who move the world forward. Fountain Pen: snap cap ink refills and refills from