Abstract: A cylindrical body with a flexible sheath at one end is mountable onto the end of a penis. With a partial vacuum drawn within the body through a one-way valve mounted in the wall of the body, the device is fixed to the penis securely. A weight may be hung from an eyelet of the body for stretching the penis. A plug provides a means for admitting air into the body for removing the device. A cone shaped wrap is secured to the penis in order to prevent the glans-penis from swelling. This wrap provides an air bladder in contact with the glans-penis to counteract swelling when the vacuum is drawn.