Sanford Uni-Ball Jetstream Rollerball Pen Refill
SAN 74396Uni-ball Jetstream 1.0mm refill write amazingly smooth like a gel, but dry quickly like a ballpoint with no smearing.
Sanford Uni-Ball Jetstream Rollerball Pen Refill - 1 mm, Medium Point - Black Ink - Super Ink - 2 / Pack