TWSBI Diamond 50 Ink Bottle - Polished Aluminum main_color_product_cross-bailey-black-lacquer-ballpoint-pen It's very simple and intuitive

It's very simple and intuitive

Be sure to read our tips on how to enjoy a J

the TWSBI (commonly pronounced "twiz-bee") Vac700R features a high-capacity vacuum-filling system that draws up over 2ml of ink in a simple

The Colorverse Project line features 8 gorgeous colors in single 65 ml bottles saturated in sheening and shading goodness

TWSBI Diamond 50 Ink Bottle - Polished Aluminum main_color_product_cross-bailey-black-lacquer-ballpoint-pen It's very simple and intuitiveGet the most out of every ink drop with this ingenious, clean filling ink bottle from TWSBI (commonly pronounced "twiz bee"). The two part aluminum cap unscrews to provide multiple ways to fill your pen. Remove the very top of the TWSBI logo cap to directly fill your TWSBI Diamond 580, Classic, Mini or Precision fountain pen. You can also fill international converters by attaching it directly to the adapter. Unscrew the bottom part of the cap so you