Nib type 250 Bock Titanium.
Titanium nib with iridium point.
Full-flex, that means that the tines open up to 1.5 millimeters. It is soft, that means you do not need to add a lot of pressure to open the tines.
SuperFlow ebonite feeder is recommended to provide the ink flow and control that this nib needs. But if you are flexing just a bit like 0.5 millimeters then the standard plastic feeder with High Ink Flow hack is sufficient.
ABS-feeder/housing diameter #6
Size 6, that means that the feeder is 6 millimeters in diameter.
– Shoulder width: 8.4 – 8.8 mm*
– Overall length: 35.0 mm*
– Recommended ink feeder: Ø 6.0 mm
* The dimensions specified here are guidelines for better orientation and may vary.