American Polydactyl Cat Silver Dog Tag Necklace Gift With a Message. This American Polydactyl Cat silver dog tag is made of polished stainless steel and the message is engraved on very high-quality metal so that it has an incredible shine that you will love every time you look at it. This American Polydactyl Cat dog tag also comes with a matching 60cm ball-style chain. It's the perfect gift for American Polydactyl Cat on any occasion.