This is a keychain I purchased from a gachapon machine about 5 or 6 years ago. It has been stored in a dark place. Some of the keychains are missing the small ring that connects the keychain to the chain. Therefore, I will attach a ball chain to those keychains before sending them. I am not certain if these are official merchandise. Please be aware of this. #keychainTWICE #gachaponTWICE #twicegachapon #twice