I machined the the threads and shaped the pen by hand on my wood lathe. Once i was happy with the size and shape of the pen i sanded and polished for a super glossy finish. This pen will come with a jowo #6 nib in your choice of polished steel or steel gold color. Available in extra fine, fine, medium, bold, 1.1 stub, and 1.5 stub.Please refer to nib options and choose your preferred size. The pen also comes with a schmidt ink converter to use with your preferred bottled ink. Body/cap threads 14mm triple start. This item is made of juma and schmidt converter, jowo nib, alumilite.