This is a set of Hernan Herdez rings, a thick gold and a thin silver ring, which are also sold at various select shops including Shinzone (this ring set is not available in Japan). The silver ring has a slightly wavy design, and the gold ring is thick but hollowed out, so it shouldn't feel too constricting if you get the right size. Model Kana Oya introduced them on YouTube, and I bought them through personal import because they're so cute. Size is 18. Set of 2, gold and silver. #KanaOya #hernanherdez #HernanHerdez #casual #ring