Clinical studies have proven that vacuum erection devices provide instantly harder erections, cause temporary flaccid enlargement, and can increase permanent penis augmentation. According to the American Urological Association, these devices may also be useful in cases where PDE5 drugs such as Viagra have failed to work. Doctors view the penis pump as a safe, effective, and cost-effective treatment for erectile dysfunction and state that prolonged use of these devices will enhance the size of the penis permanently. Other advantages of the PUMPED selection include delayed ejaculation, improvement of sexual appetite, boosting of testosterone, maintenance of longer and harder erections, and support for penile tissue after prostate surgery. PUMPED, for instant results!.