This dog tag keychain comes from the Avengers movie Age of Ultron . It was a dog tag that I turned into a keychain by using a fishing swivel instead of a chain and a 1 inch keyring . The dog tag measures 2in by 1.25in and is made of metal , the opposite side of the tag is exactly the same . Anyone who is a fan of the Avengers will love this keychain . Please send any questions before buying . Thanks for looking