TWSBI DIAMOND 50 Ink Bottle - 50 ml

The TWSBI Diamond 50 Ink Bottle is a beautiful faceted glass ink bottle with an anodized aluminum screw cap. Holds about 50 ml of ink.

Makes it easy to refill your TWSBI pen in the TWSBI Diamond 580, Classic, Mini and Precision models using the bottle's special chamber and filling mechanism.

How to use it:

1. Unscrew all parts of the cap on the bottle. Fill it with any ink suitable for fountain pens and screw the cap back on.

2. Turn the bottle upside down so the ink fills up the built-in reservoar.

3. Unscrew the upper part of the cap. Unscrew the nib of your TWSBI pen and place the pen against the nipple of the bottle. Turn the top of the pen to draw up the ink in the pen.

4. Screw the nib of the pen back on. All done!

If you want to fill fountain pens in other models or brands that have a standard international converter: take out only the converter and put in on the nipple of the bottle and fill it up. You can also unscrew the entire lid so that you open up the glass bottle to refill ink as usual with all kinds of fountain pens. 

Please note! Ink not included.

Color: Silver
Materials: Glass and aluminium
Amount: 50 ml