I think these rings are adorable! I enjoyed them enough to buy extra sets as gifts for my friends. The rings appear to be well-made, and the quality seems durable considering the cost. I've worn them often without any change in color (though I avoid washing my hands while wearing them, just to be safe and maintain their condition). They aren't extravagant, but they are a good value. If you like Ousama Ranking, then you should definitely buy them!