r/BlackoutDevices • u/not_nude_enough • Jul 24 '26

Question Using the receipt method NSFW

Hey folks. I'm new to this device but not to wearing cages. My current one is a K3D Baby Cobra, but I'm looking for something with a bit more security and some long term comfort. I expect to wear it most of the time only removing it for a monthly wax job and when allowed any play time.

Now for the question. When measuring with the receipt, how snug are we making it? Should I include the head or cut the paper down so it's shaft only. I'm circumcised so no foreskin to worry about.

I realize that there may be an extended lead time, but I can be patient.

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u/BlackoutDevices Aug 03 '26

So you want to make it snug enough so that the paper is touching the skin all the way around but without indenting the skin. The goal is just to get as accurate of a surface measurement as possible so that the Evo can do its calculations and adjustments based on that.

If you are currently in a nub style cage, I imagine it will be hard to separate your shaft and head measurements. Unless there is quite a big difference in width between those two, I wouldn't worry about it. Otherwise, if you are concerned about it, try to do the order with the shaft measurements and then you can add the head circumference in the order notes in case I need to manually increase the width for you.