Description Made for Anderson Pens, this 54mm J-Bar is one of the most common sizes of J bar. This is the J-Bar size that you need for your Esterbrook Dollar Pen or Transitional. For J, LJ, SJ model Esterbrooks, use the 48mm J bar instead. If you need to trim to fit your pen, trace the profile of the bar, trim a few mm at a time at the back J bend of the bar and then re-bend to shape.Please note: Price is per J-Bar.