It took me months to finally get up the nerve to install this hefty hunk of metal; but once I dared to dangle, I was hooked! This is a MAN's ring, sporting almost a pound of steel in a shape that allows maximum comfort (indeed, it is my most comfortable ring). When you want to KNOW it's there, reach for the Omega. NOTE: Due to the heft of the Omega ring, it is recommended you purchase one size SMALLER than normal for the most comfortable fit. To fit properly, a cock ring should be loose enough to get on and off easily, but a bit snug to work its magic once the blood starts pumping. To calculate the minimum size of a cock ring, cut a strip of paper or ribbon no wider than 1/4 inch. Starting from the top of your penis at the base (where it meets your body), wrap the paper under your scrotum, bringing it around to the starting point. Mark the paper where it meets. Measure that length, then divide by three. The correct diameter of the cock ring you should order is approximately one-third of the length.