Main body material Brass with paint finish. Pen tip material 14k gold. Mechanism Cartridge, converter dual use type. Size Total length: about 136mm (when stored). Total length: about 143mm (when writing). Torso diameter: about 11mm. Cap diameter: about 11mm (excluding clip). Maximum diameter: about 16mm (including clip). There is some feeling of use such as scratches on the obi in the middle of the body, other external scratches, small scratches, etc. But it is in generally good condition. International Buyers – Please Note. Thank you for your understanding.