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Get 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 can fill any other pens as you would a traditional ink bottle.
The faceted shape of the 50ml glass ink bottle gives your ink color a beautiful home to show its brilliance. Ink is not included.
TWSBI Diamond 50 Ink Bottle SpecificationsOur online pen store is open 24/7 and we ship Monday through Friday, excluding some holidays. Most orders are shipped the same business day when received before 12:00 p.m. EST. Personalized pens will add an additional 1-2 days to process. If your order is time-sensitive, please note it in the order notes or contact us to ensure we can accommodate your needs.
Goldspot Pens is an authorized retailer of all the 50+ worldwide writing brands it represents. Every pen, refill, and accessory is 100% genuine and backed by respective manufacturer warranties. Buy with confidence - if you need to return or exchange your purchase, our 30-day return policy makes it quick and easy.
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