TWSBI Vac 20A Ink Bottle – Black

This plastic inkwell from TWSBI has a black cap and holds up to 20ml of your favorite fountain pen ink.

You can use the specific upper cap design to cleanly and directly fill your TWSBI Vac 700, Vac700R or Vac Mini fountain pen, or simply unscrew the upper cap to fill any fountain pen from the inkwell itself.