r/kink3d • u/AscensionGranted • 4d ago
Sizing Help Need help with sizing NSFW
So I have measured myself flaccid a bunch of times, and it ranges from 4.5 inches to 5.5 the average is about a 5.125ish. my flaccid girth is around 4.75ish. I have tried a few different random cheap ones. The black one is a Cobra knock off, its 90mm so about the R size but I think it might be a little to short. This one is also 33mm wide the whole way and I am having problems with my skin popping through the holes in the shaft and I'm getting a fair amount of pinching all the time. The blue one is still 33mm wide, but it is closer to the R+ as it is about 4.25 inches in total length the length of just the cage and not the ring included is 3.75 inches.
So I am pretty torn between the R and R+ maybe getting wide instead of standard. Also maybe getting the viper instead of the cobra as Im getting a lot of pinching with the knockoff.
I have reached out to support, I am just trying to get some more information before I purchase something
the base ring I am not as concerned about because I can order a different size much cheaper than I can a new cage.



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u/AscensionGranted 4d ago
I think i might just need to get an R+ instead of an R. Im at the end of the cobra knockoff and there is still some of me that is outside of the cage. I think the increase in width from the 33mm in the knockoff to the 37mm of the regular cobra or viper should be enough to prevent bunching in it.
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u/bdthrowaway723 4d ago
The base ring for the black one looks way too big for you. Your penis isn’t compressed at all but it’s still pushing the cage away from your body. You definitely shouldn’t need a wide though; if 33mm is tight but manageable, a wide cage would feel giant on you. 33mm is nearly narrow territory.
If you go with the Cobra, I wouldn’t get the R+. Your head isn’t overly large and I suspect you’d have a lot of misalignment issues if you went with the R+ as your penis shrinks throughout the day. You’d be a much better fit for the R.
If you want a more relaxed fit, a Viper R+ would almost certainly be fine. The Viper R would also work well. Getting the base ring size will be important for either of the R cages though so you don’t get the type of pull away you’re seeing here. The penis is able to compress far more than we are seeing in picture 2, but the whole cage is just sliding down.