Great for Esterbrook LJ ans SJ
I use these in Esterbrook LJ and SJ pens; size 16 in the J (full size). Size 16 will work for all, but these 15s grip a little better on the thinner LJ and SJ models, especially on wet shellac. Just shellac the bladder to the section, not the section to body, by the way. Thanks for good pricing and quick shipments.