Glass bottle with an impressive design made of anodized aluminum with a capacity of 50ml for ink.

TWSBI Diamond 50 ink bottle, Black

• Ideal for filling ink for the company's 530, 540, 580, and Mini series.
• The pen's shaft fits precisely into the opening of the bottle.
• Allows for easy and safe filling of the pen.
• The internal plastic cone holds just the right amount of ink needed for filling the pen.
• Suitable for pens from any company, thanks to the built-in internal plastic cone.

A functional and aesthetically pleasant pen accessory from TWSBI.