This is a set of three items: an obi締め (decorative sash tie), an obi板 (obi board), and a 襟芯 (collar belt), all brand new and unused, found in a Japanese-style chest at my parents' house. Despite being stored for a long time, they are in beautiful condition. Would these be suitable for a coming-of-age ceremony? The obi締め has genuine pearls, giving it a luxurious feel. I am not knowledgeable about kimonos, so I cannot answer detailed questions. Although they are new and unused, they have been stored for a long time, so please refrain from purchasing if you are overly concerned about their condition.