This TWSBI stainless steel Fine replacement nib was designed for the TWSBI Diamond 580 fountain pen, so that you can change different nibs to suit your mood. Just unscrew the section, push out the old nib unit and insert the new one.
This TWSBI stainless steel Fine replacement nib was designed for the TWSBI Diamond 580 fountain pen, so that you can change different nibs to suit your mood. Just unscrew the section, push out the old nib unit and insert the new one.