They don’t.
Don’t you think that if there was something that worked, that every man in the WORLD would be using it? They would have to strap their penises around their ankles because you know how insecure men are about it. Most would think that a 3 foot long penis would finally make them the man they’ve always wanted to be. LOL Sorry. Guys are stuck with what God gave them. There is NO way to change it.

Here we go again with another “penis length/size” question.
Average is about 5 to 6 inches. Penises come in a variety of sizes. Your penis size will be the size you are given! There are no pills or creams, no toys or tools that will make a penis longer or larger. Any product claiming to do that should be regarded as being suspect. Likely it is a scam and the only thing that will get bigger is the wallet or bank account of the person/company offering the product. Look closely at the promotions and you will see that the product is not tested, inspected, approved or endorsed by any reputable organization. If it works why has it not been submitted to the U.S. Federal Food and Drug Administration for FDA Approval. If you are concerned that your penis is not large enough then consider that the average length is 5.5 inches and frankly that is plenty large enough. Read some of the posts from females who are afraid of the “huge” penises out there. Sure the “American thing” is “bigger is better” but that is not always the case. If you are concerned about the ladies pleasure - and that should be your main concern, you should develop a technique or style that makes the most out of what you were given.
It is important to remember that sexual intercourse is not simply a piston going back and forth at a high speed. Actually a lot of the “jocks” haven’t figured that out yet. If you work at developing a style you will score more and it will be more fun for both of you.
And it will be fun learning the technique.
And if you are still wanting to do something to make your penis bigger, each night before you climb into bed, get down on your knees, bow your head, and pray for a larger penis. Trust me, you stand a better chance this way than with any tools or toys

only thing i have to say about that is…if it REALLY did work…every guy from here to Austrailia would be walking around with king kong dongs….so I don’t think so.

dont waste your money.

None of them work. You have what you were born too have.
Think about it if they really worked all men would be huge, and thats just not the case now is it.