All I can say is it worked. Aging caused my ED as I have had no cancer or surgery. When I started experiencing problems, I used the blue pill until it stopped working. Then I looked for alternatives found the Erektor and the pump. I went with the pump and it just didn’t work for me. I was about to give completely up and as a last resort, tried The Erektor. I’m happy to submit it did work. We’re 75 and can now go back to enjoying the intimate relation we have experienced for 55 years. I was really skeptical that the Erektor would work for me but I tried it as a last resort, glad I did.