This pendant is made from a real key that I've then ground, filed, and sanded the surfaces. I then hand saw the design into it and give the edges a fine filing. The whole thing gets a soft steel wool finish. Has been stamped with STELZER and hangs on an 18" sterling ball chain. A 16" chain is also available, shown in 1st thumbnail. I'd be happy to oxidize the chain, if you'd like. Just make a note of it in the message to seller in the checkout.