I can achieve about 7 1/2 inches in about 30 minutes of pumping that is the circumference of my penis and not the length of it. I use cylinders I made myself out of PVC piping
I have three different cylinder sizes one is 1 1/2 inches ID which is to add more length
One is 2 inches for more girth
And another 2 1/2 inches for even more girth which I use before I have sex and sex is not only better for the girl but also for me when it is swelled to about 7 1/2 inches around or circumference of my penis it you use it regular I can achieve 7 1/2 inches in just about 30 minutes and also feels a lot better if I do not have sex and just masturbate a lot better.
