Diamond 50 Glass Ink Bottle

Shipping Rates
  • Mess free filling.

    The TSWBI Diamond 50 glass ink bottle is the perfect accessory for the Diamond series fountain pens to ensure mess free filling.

    Simply unscrew the nib section and attach the pen body to the black filling apparatus and fill your pen with ink. This way you won't get ink on the grip section and can avoid inky fingers.

    You can also remove the black coloured section and use the bottle like a traditional inkwell so you can use the bottle to fill other fountain pens.

  • Learn how to use and care for fountain pens with our guides.

    Anatomy of a fountain pen

    Filling from a bottle


  • Brand TWSBI
    Type Inkwell/Ink bottle
    Colour Clear with black cap
    Material Glass
    Trim Anodized metal
    Cap Type Screw cap
    Volume 50ml


Shipping Rates
Free Express Shipping on orders over
$79 in Australia
Free Express International Shipping on orders over
$120 to New Zealand
Letter Post
Some thin items like notebooks can ship as letters in quantities of 1 or 2 for just $3
(within Australia)
Low Rates
Parcels with tracking numbers from just $8.40 Australia wide & $10.80 to New Zealand
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