My personal theory on penis size is that there is a genetic limit to size and some men reach that limit without engaging in any extra effort. I think most men haven't reached that limit, but can reach it with extra effort such as penis exercises, pills, and/or vacuum pumps. Different things work for different men. In my case, the vacuum pump worked best and I gained 1 3/4" but stopped there and no further efforts increased things for me. I am happy that I have reached my genetic potential. So, my advice is that if you want to get bigger, try different methods. Hopefully one will work for you, but don't be disappointed if you don't get results. Remember, what really matters is performance, not size.