question about Mity vac cylinder size?

4.75" circumference equals 1.5" diameter.
5" circumference equals 1.6" diameter.

Standard practice is to use a pump cylinder that is .25" bigger in diameter than the thickest part of your erect penis.

If the thickest part of your erect penis is a 5" circumference on a good day, get the 2" diameter MityVac or ProVac
 
Last edited:
Ok thanks things are clearer now i had the same doubt because wouldnt allow me to get more expansion,yep actually want to gain both lenght and girth...so id get the the 2" cylinder..hope so
 
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