Humanscale Diffrient Smart Arm latch replacement

I got one of those Humanscale Diffrient Smart office chairs with adjustable Duron arms. You know, the ones that go up and down. Well, the latch broke and the thing refused to stay put, so instead of paying over $400 for a replacement pair of arms I just made this. It should be printed vertically with supports for strength. I used a .2mm nozzle but a .4 should be just fine. Also, I recommend PETG or ABS. PLA just isn't strong enough.