These are 18K yellow gold hoop earrings. I purchased them at a domestic jewelry store and used them carefully a few times. They are each stamped with "k18". The weight is 1.3g. They are the type that can be adjusted with a screw, which is very convenient. They look like pierced earrings and are cute. They are made entirely of 18K gold, so they also have asset value. As of October 21st, the買取 (buyback) price of 18K gold per gram is: ¥16,026 at Tanaka Kikinzoku ¥17,384 at Kaitori Daikichi which are both high prices. I will wrap them in bubble wrap and ship them via Nekopos (anonymous delivery). Thank you.