Why do you need a special ring of soap to cleanse your stem? Fact is not everyone does.
But you nasty, disease prone uncircumcised animals sporting an anteater with a turtleneck need all the help you can get. Before you even think about having one of your significant others take that smegma farm into one of their many orifices, polish up that AIDS magnet.
Lucky for most of you, this size fits most guys. If it doesn't fit, you probably have problems that soap can't fix.