Material : Black Celluloid and Red swirl cast acrylic resin, Black trim. Nib Size: #6 nib Fine, Medium, Broad. Cartridge/converter ink system. Weight: 25 grams Length (capped): 140 mm Length (posted): 160 mm Cap Diameter: 15mm Body Diameter: 13 mm. Price includes Black lacquered Steel nib and converter. Please e-mail for semi-flex Titanium nib upgrade options.