Thank you for viewing. I used it once a few years ago and have stored it in a dark place since then. There's no tag, so I don't know the size, but I think it's probably 17-18cm. However, it seems like it can be worn even if it's over 18cm. Instant purchase is OK. Regular price: 1650 yen If you are paying at a convenience store/ATM, please let me know your payment schedule in the transaction message. Please read the profile to prevent any trouble.