Handmade Music Key Necklace (Amethyst) Product may vary slightly from the picture as each piece is carefully handmade Key is composed of various tibetan silver (metal alloy) charms, brass, solder, craft gems (plastic or glass), and watch parts. These are not made of precious metals or stones. This is a Keyper's Cove original design and comes with a full lifetime warranty We strive to create unique costume jewelry for any occasion