TWSBI Inkwell

Go see in the 'Specifications' section below the PDF file to learn how to use the Diamond 50 inkwell.

TWSBI Diamond 50 Ink bottle: designed for every type of fountain pen + specific upper cap design for Diamond 530, 540, 580, Mini, Classic and Precision fountain pens.

No ink inside.

The TWSBI Diamond 50mL ink bottle is a glass bottle with anodized aluminum top that is the perfect accessory for any fountain pen addict! The bottle allows for easy refilling of your fountain pen by offering an upper reservoir that fills with ink when you turn the bottle upside down (cap on of course!). The reservoir provides a set amount of ink to fill your pen and avoids the hassle of dipping your pen to the bottom of the bottle, trying to get each drop out as the bottle runs low.

As an added benefit to those who own the Diamond 530, 540, 580, Mini, Classic and Precision fountain pens, you can use the colored band attachment (upper cap) to refill your TWSBI fountain pen without having to use the nib at all! Simply unscrew the nib section of your fountain pen and attach the barrel to the filling apparatus. Turning the piston knob of the fountain pen will draw the ink up into your pen. No more inky fingers!