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I’d been limping along with cartridges for months, but this converter finally lets me dip into my stash of bottled ink. The twist piston mechanism feels solid and draws up a full load without any fuss.

Fits snugly into my Tornado pen and the twist mechanism feels solid enough for daily use. Switching between bottled inks has been mess-free so far, though I wish it held a touch more ink between refills.

Finally got my hands on bottled inks and this converter makes the switch painless—twists smoothly and fits the pen body without any wobble. Took a couple fills to get the hang of the suction, but once it clicks, it holds a good amount. Minor gripe: it’s a bit fiddly to clean between colors, but that