One of a kind. This is a quintessential Art Deco inspired Rocky Mountains inlaid with genuine abalone. It's explosive with detail. This is a real showstopper. The metal/chain is made of pewter and contains no nickel. The length is 20 and 1/2 in total and includes a Lobster Claw clasp with a 2-in extension that can accommodate any neckline. From a smoke-free pet-free home