Extenders like his are proven to work, that’s what I heard anyway. After reading about so many success stories and seeing the pics couldn’t help but try it myself. I was skeptical in the beginning and was expecting to ask for a refund but less than 4 weeks after using it I was starting to become a believer because I gained over 2cm in the first month. Then I started reading more into this stuff and added some jelqing into my routine too. Now after 9 months of the SizeGenetics and jelqing I am currently 8.3 inches and when I started I was 5.9. My gf has even told me to stop using it because I’m getting too big for her. If you’re skeptical then just give it a try because it really works.