Prototype Popstop Fountain Pen – Triple Purples acrylic From this center point make

From this center point make marks 4 1/2" on either side of it (the rollstop screws are spaced 9" apart)

this is simply how some pieces of ebonite look when fashioned into pens

but holds your pen much better

View the video below to see how it works

The short version (shown with the yellow pen) is intended for pocket sized pens

Prototype Popstop Fountain Pen – Triple Purples acrylic From this center point makeNote: This pen will ship with a short international cartridge. It will accept converters with a maximum length of 2. 75", but one is not included with the pen. This is a prototype pen with a deployable rollstop. Simply press the colored circle in the cap against the sharp edge of a table and the rollstop pops out. Leave it this way or leave it flush for a streamlined look. Or, push it out entirely with a pencil for a unique look or to use as a lanyard