Nib Size : Iridium M , Cap : Push Type Capped length 138mm , Diameter 12.5mm & pen weight 35g Take Cartridge : International standard ( Fit the Jinhao cartridges in our store ) Package : One pen and one lanxivi pen pouch as picture shown With manufacturing based on Shanghai, China, the Shanghai G. Crown Fountain Pen Co., Ltd. has introduced its new line of pens, called DUKE. Registered in Europe as German Duke Lux Pen GmbH.,and drawing heavily upon its R&D sub-branch located in Germany, the DUKE brand uses advanced German and European pen-making technology, and employs it to bring traditional Chinese motifs to mid-range and high-end pens and limited editions. When APEC meeting is held in Shanghai in the year of 2001 and the Duke pen is chosen by Prime minister Zhu Rongji and other Chinese diplomats as the contract pen for the important national meetings in the seventh meeting in August, 2002. After that, Duke Golden pen is officially entitled as the contract pen for the China’s prime national meetings and won the international brands’ trust and reputation. More instances, Duke pen has won the right as the general agency of the F1 products in China, in charge of its researching and developing, producing, and sales. Therefore, Duke Golden pen is well known by lots of international pen producing units and regarded as the most valuable classic pen collection in China.