The present invention relates to a device for treatment of erectiledysfunction comprising aring. The device further provides for retraction of the foreskin of the userand maintains theretraction of the foreskin throughout sexual activity. The device alsoincreases the length ofthe sliding interface of the penis during sexual activity. The devicestimulates the stretch-sensitive nerve endings of the foreskin before and during sexual activity. Thedeviceincreases stimulation of the sensitive nerve endings of the glans duringsexual activity. Thedevice retains blood within the penis upon erection, increasing the ability ofthe user tomaintain an erection for longer and to achieve and erection more reliably. Thedevice createsthe appearance of a larger penis.