I purchased this here. I only used it once for a test. Here is the information from the previous seller: I believe it's probably sv925. It's a silver and gold bi-color. The silver part is about 7.5 cm long, and the gold part is about 7.2 cm long. It seems this was a novelty item that came with a purchase from ete. There is no box, so it will be shipped in a bag. The ring is a bonus. It is not from ete. I bought it for about 3000 yen. I don't know the material. I think it's about size 13. This is a used item.