Chastity device discussions and reviews discussion

Which appeared first? Both companies sell products that appear identical. Is one copying the other? Or is one offering lower quality goods? Alternatively, could one just be selling some of the same items at a better price? I am mostly comparing Jail House with the Spiral Male chastity device. I counted the rings and noticed only a slight difference between them. Has anyone here used either product or company before? I would prefer to purchase the original rather than a copy, particularly if there is a risk of tarnishing or rusting:-(