0.6" tips, ink marker- The OTR.084 is not called the Flowpen for nothing! This marker is hardcore on the drips. You have the control to make your shit drippy as you like! The marker is totally transparent, so you can always know your exact ink level. You can refill your Flowpen with the special OTR ink and replace your nib (both available on Bombing Science) and your marker will works for years.
