Xezo Diamond Cut Fountain Pen (Incognito Copper F) Supplied with gift box, fountain cloth, 4 ink cartridges, ink converter, certificate, and 3-year warranty card. German-made fine point nib. .999 platinum-plated hallmarked. Limited-edition of 500 pieces. Ink refill is standard European size and is selectively interchangeable with a variety of commercially available fountain ink refills including, Xezo parker, cross, waterman, Schmidt, Shaffer, St. DuPont, Visconti, pelican, Dunhill, delta, krone, angora and Cartier. Diameter - 12 mm; Length Posted - 156 mm; Length Capped - 138 mm; Weight - 1.4 ounces/40 grams Weight balanced body is designed to minimize friction against the paper. Hues change slightly, depending on the lighting. A portion of the proceeds goes towards the nonprofit organization Unite4:good.