Great Product
My ED is most likely related to age and cardiovascular issues. I had a dim view of pump products. I thought they were a scam. I read reviews from a variety of reputable sources and decided I might be wrong and that if I was, this might be one of the best products. I looked at on-line videos and read the instructions that come with the pump. I began with the largest ring. It did not work. I began to work down in ring size until I found the one that did. This product works for me just as described, perfectly every time. I would prefer that I did not have an ED problem. But, since I do, I will use and recommend this pump as an alternative. My lady and I are both satisfied.