Penis extenders of myriad types are available out in the market today. There are few that are really effective and others that are not so. Some will indeed show you results and help you increase your penis size while others are just out there to relieve you of your money. Sizegenetics is a name you must have heard of if you have ever read a sizegenetics review and this is a reputed, safe and well known brand for penis extenders trusted by thousands of men around the world. This brand has helped lots of men feel more like men by helping them overcome their size issues, leaving them more competent as sexual performers.