Penis extensions allow a man to wear a condom like device which has a prosthetic penis extension which can extend your penis several inches. They can also be attached with straps. The benefit of this device is mainly for the person being penetrated. The penis extension device is not meant to replace a condom and sometimes a condom is used to help hold it on. Most penis extensions will weaken most sensitively so that intercourse can continue as long as the wearer can maintain an erection. That being said unless the thrill of pleasing your partner with your longer equipment keeps the wearer erect sometimes the wearer may lose too much sensitivity. In that event sometimes it’s good to switch things up and try other things.