Nolove;714232 said:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC548174/
the other one i lost the link sorry, but im sure the study they quoted was from this link
Non-invasive methods of penile lengthening: fact or fiction? - Oderda - 2010 - BJU International - Wiley Online Library
its a good read however im sure majority read it before.
Several surgical techniques have been perfected to obtain penile girth enlargement. Among conservative methods, it has been claimed that penile [words=https://shop.mattersofsize.com/products/sizegenetics-penis-extender]extenders[/words] can increase penile circumference by 0.6–1 cm/month [22]. It is not clear why these devices should be effective in enhancing penile girth; it has been hypothesized that chronic [words=https://shop.mattersofsize.com/products/sizegenetics-penis-extender]traction[/words] causes soft tissue cellular proliferation with tissue growth in a multiplanar fashion [19]. These findings, however, were not confirmed by a study by Gontero et al. [7], who found only negligible changes in penile girth after 6 months of [words=https://shop.mattersofsize.com/products/sizegenetics-penis-extender]traction[/words] therapy. Nikoobakht et al. [16] did not find significant changes in proximal penile circumference, either, although a significant difference was found in glans penile circumference. It is interesting, however, that no girth decrease was reported with [words=https://shop.mattersofsize.com/products/sizegenetics-penis-extender]traction[/words] therapy, as one would have instinctively thought.
This is in direct like with The Penis is a Balloon not a Rope.