Gel
Pentel Style
Zebra Sarasa Grand
Lamy 2000 Rollerball with hacked in EnerGel refill
Pentel Hexreform
Riind
Pilot Dr Grip Limited Gel
Sakura Craft Lab 007
Uni Jetstream Alpha Gel with EnerGel refill swap
Autmog 36 Click
Stilform Arc Gel