1.1 mm #6 stub nib
I have been into fountain pens for about three years and this is one of my best purchases. This nib turned a fountain pen that I did not enjoy writing with into one of my favorites. A Ranga giant 9B. Without asking them to, Anderson Pens researched this pen for me and told me this pen took a #6 nib. I wanted to replace the fine nib with 1.1mm stub which they had and I did it. They went above and beyond the call of duty as far as I am concerned. They are great folks to do business with. Thank you.