YSTD&reg; NEW JINHAO X450 TWIST CARVEN FINE NIB STUDY OFFICE FOUNTAIN PEN (Blue) Jinhao Pen is inspired from the long history and splendid traditional culture of China, which contributes to the fine artistic elements and design concept; and it's processed and finished by world-leading techniques. Thanks to the original design, top materials, and exquisite craftsmanship, it stands for the excellent quality, the trend in the trade, the valuable for collection, and the witness to history. Best gift for your Friends or your family! Great for collection! Converter: Removable ink converter( may be replaced with international standard size ink cartridge. Also, you may use bottled ink.) Length: 14cm/5.51"(approx) Diameter: about 14mm/5.51"(approx)