The plug casing of Pentel is hakelig and printed the information of the manufacturer, unfortunately, fixed to the housing. When "Uniball Signo" you can remove a label and so receive a handsome pen.
A time seemed a bit too much ink to run out of Pentel Mine. This is not happening after this one observation - perhaps this has not directly to do with the mine.
The optimal combination for me is therefore the case of the "Uniball Signo" with a "Pentel" -Mine.