Shower Curtain Ring

Got sick of my shower curtain falling off the open rings it came with, so I made these. They're print-in-place and stay shut pretty tightly. 

I've included versions with 0.25. 0.3, and 0.35mm clearance, so you can find the one that prints best on your machine. For me, with PETG and an 0.4mm nozzle with 0.2mm layer height at 248C, the 0.3mm one works nicely.

I usually need to do a bit of gentle poking and prying with a thin metal spudger or the edge of a putty knife to get the latch to come apart the first time.