TWSBI’s vacuum-filler has been reworked to ensure more consistent ink flow when the valve is opened, and it’s now available in the unique “Iris” finish. To fill a vacuum-filler fountain pen, simply retract the plunger, submerge the nib section into your ink bottle, and depress the plunger to watch the pen fill. This style of pen can be perfect for those who travel, since the pen includes a “shut-off valve” to prevent spills and leakage. (Note that with the “Iris” pens, no two finishes will be exactly alike.)

Available in multiple nib sizes, including extra fine, fine, medium, broad, and 1.1mm stub. Fountain pen ink is sold separately, and this pen uses bottled ink only (no cartridges).