This pen has two sections of 24kt gold fuming to form a double helix pattern. As well as three different CFL shifting colors near the grip.
The nib is 4mm wide and writes wonderfully. It is possible to change the nib if you are interested in a different style nib. There will be a surcharge for the change. I do this with all one off pens.
Nib: 4mm wide line
Width: 14mm at the widest point