I assure you. It exists as it is business. I tried a Neosteel chain design by the past, I know.
I'm not allowed to get fully erect in my belt. I can erect about 2 centimeters in my tube. I tend now to lose my erections and I feel better. My penis has in fact began to understand there is no hope to get erect.
Unlocking every one or two months is sufficient. Many men permanently locked in full belts lose their erections without health problems.