Uni Ball never disappoints...
December 30, 2015
Uni Ball never disappoints in the Power Tank, and you can usually find various
size tips here on JetPen. Sometimes the Jetstream ballpoints sometimes quit on
me, rather than run out. This one wont. I found one other pen that accepts this
pen's cartridge if you don't like the grip. But I forgot which. It's probably a
quarter inch longer than standard.