Manual penile exercises can be done without the need of special equipment. However, if you add extenders or pumps to a workout routine, you can enhance your gains. For beginners, it’s recommended to do one of the beginner-friendly exercises first (like stretching or jelqing) for a few months before doing combination routines with equipment. This ensures the penis has been fully-conditioned for the additional load caused by extenders or pumps.
“The penis extends for two to three inches inside the body in the pubococcygeus (PC) muscle, which can be strengthened in order to achieve stronger erections and orgasms. It also helps a great deal with obtaining better ejaculatory control,” says Hall. “The PC muscle, which surrounds the prostate gland, is like a valve around the genitals. Orgasm builds from the prostate, so learning to develop these muscles is highly beneficial. Doing PC muscle exercises helps to strengthen the muscle, and men can even add weight to help build it up,” says Hall.
Still, since size is so important to men, here are some elongation exercises that can help you make the most of your penis. Keep in mind that width is generally more satisfying than length, but if length is what you're after, here's how to get it naturally. More importantly, these exercises will not only increase the length and girth of your penis, they're good for you.

Ready to try it for yourself? Here's how to do it: Squeeze the muscles that you would use to stop the stream of urine and hold the contraction for 1 to 2 seconds (concentrate on only using your pelvic muscles, and not your glutes, thigh, or hip muscles). Release. Repeat 30 times, resting one minute when you're finished. Perform 3 sets, 3 to 4 times a week. 
Even in reputable studies, the statistical average varies, US median is about 5.5 inch according to the biggest study (1661 sexually active men) we could find by the well known Journal of Sexual Medicine. Most men have an erect size between 5 and 6 inch, so below 5 inch can be considered small. This data matches my own long term experiences as an andrologist. Don’t be fooled by the penis sizes you often see in adult movies, all actors are selected individuals far above the average size. These movies certainly don’t depict any statistical average and also use visual tricks to make the manhood of the male actors appear even larger. Nevertheless, many men ask themselves how to get a bigger penis the natural way, without any unnecessary risks and dangers.
The vacuum pump. This is a cylinder that sucks out air. You stick your penis in and the resulting vacuum draws extra blood into it, making it erect and a little bigger. You then clamp off the penis with a tight ring -- like a tourniquet -- to keep the blood from leaking back into your body. What are the drawbacks? The effect only lasts as long as you have the ring on. Using it for more than 20 to 30 minutes can cause tissue damage. This is sometimes used as a treatment for erectile dysfunction, but has not been proven to actually increase the size of the penis.
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