Description This Maiora Aventus Sinis fountain pen features a glossy bright blue flecked resin body and cap, accented by a beautifully engraved cap ring, and rose gold-plated trim. The Maiora Aventus fountain pen uses a standard gold-plated #6 Jowo nib, and fills via the special Maiora threaded converter that can be accessed by unscrewing the blind cap at the end of the barrel. Short standard international ink cartridges will also work - simply unscrew the barrel from the grip section, unscrew the converter, and press in the cartridge to use. Each pen is individually numbered. The Maiora Pen Company makes all of their pens by hand in Naples, Italy. Maiora is managed by Nino Marino, the former co-founder and president of the Delta Pen Company. Maiora also produces fountain pens under the Nettuno brand.